731 lines
29 KiB
Smarty
731 lines
29 KiB
Smarty
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{{/* vim: set filetype=mustache: */}}
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{{- define "config-redis.conf" }}
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{{- if .Values.redis.customConfig }}
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{{ tpl .Values.redis.customConfig . | indent 4 }}
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{{- else }}
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dir "/data"
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port {{ .Values.redis.port }}
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{{- if .Values.sentinel.tlsPort }}
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tls-port {{ .Values.redis.tlsPort }}
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tls-cert-file /tls-certs/{{ .Values.tls.certFile }}
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tls-key-file /tls-certs/{{ .Values.tls.keyFile }}
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{{- if .Values.tls.dhParamsFile }}
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tls-dh-params-file /tls-certs/{{ .Values.tls.dhParamsFile }}
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{{- end }}
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{{- if .Values.tls.caCertFile }}
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tls-ca-cert-file /tls-certs/{{ .Values.tls.caCertFile }}
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{{- end }}
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{{- if eq (default "yes" .Values.redis.authClients) "no"}}
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tls-auth-clients no
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{{- end }}
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tls-replication {{ if .Values.redis.tlsReplication }}yes{{ else }}no{{ end }}
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{{- end }}
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{{- if .Values.redis.disableCommands }}
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{{- range .Values.redis.disableCommands }}
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rename-command {{ . }} ""
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{{- end }}
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{{- end }}
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{{- range $key, $value := .Values.redis.config }}
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{{- if kindIs "slice" $value }}
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{{- range $value }}
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{{ $key }} {{ . }}
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{{- end }}
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{{- else }}
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{{ $key }} {{ $value }}
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{{- end }}
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{{- end }}
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{{- if .Values.auth }}
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requirepass replace-default-auth
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masterauth replace-default-auth
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{{- end }}
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{{- end }}
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{{- end }}
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{{- define "config-sentinel.conf" }}
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{{- if .Values.sentinel.customConfig }}
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{{ tpl .Values.sentinel.customConfig . | indent 4 }}
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{{- else }}
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dir "/data"
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port {{ .Values.sentinel.port }}
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{{- if .Values.sentinel.bind }}
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bind {{ .Values.sentinel.bind }}
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{{- end }}
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{{- if .Values.sentinel.tlsPort }}
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tls-port {{ .Values.sentinel.tlsPort }}
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tls-cert-file /tls-certs/{{ .Values.tls.certFile }}
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tls-key-file /tls-certs/{{ .Values.tls.keyFile }}
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{{- if .Values.tls.dhParamsFile }}
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tls-dh-params-file /tls-certs/{{ .Values.tls.dhParamsFile }}
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{{- end }}
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{{- if .Values.tls.caCertFile }}
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tls-ca-cert-file /tls-certs/{{ .Values.tls.caCertFile }}
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{{- end }}
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{{- if eq (default "yes" .Values.sentinel.authClients) "no"}}
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tls-auth-clients no
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{{- end }}
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tls-replication {{ if .Values.sentinel.tlsReplication }}yes{{ else }}no{{ end }}
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{{- end }}
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{{- range $key, $value := .Values.sentinel.config }}
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{{- if eq "maxclients" $key }}
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{{ $key }} {{ $value }}
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{{- else }}
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sentinel {{ $key }} {{ template "redis-ha.masterGroupName" $ }} {{ $value }}
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{{- end }}
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{{- end }}
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{{- if .Values.auth }}
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sentinel auth-pass {{ template "redis-ha.masterGroupName" . }} replace-default-auth
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{{- end }}
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{{- if .Values.sentinel.auth }}
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requirepass replace-default-sentinel-auth
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{{- end }}
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{{- end }}
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{{- end }}
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{{- define "lib.sh" }}
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sentinel_get_master() {
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set +e
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if [ "$SENTINEL_PORT" -eq 0 ]; then
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redis-cli -h "${SERVICE}" -p "${SENTINEL_TLS_PORT}" {{ if .Values.sentinel.auth }} -a "${SENTINELAUTH}" --no-auth-warning{{ end }} --tls --cacert /tls-certs/{{ .Values.tls.caCertFile }} {{ if ne (default "yes" .Values.sentinel.authClients) "no"}} --cert /tls-certs/{{ .Values.tls.certFile }} --key /tls-certs/{{ .Values.tls.keyFile }}{{ end }} sentinel get-master-addr-by-name "${MASTER_GROUP}" |\
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grep -E '((^\s*((([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5]))\s*$)|(^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?s*$))'
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else
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redis-cli -h "${SERVICE}" -p "${SENTINEL_PORT}" {{ if .Values.sentinel.auth }} -a "${SENTINELAUTH}" --no-auth-warning{{ end }} sentinel get-master-addr-by-name "${MASTER_GROUP}" |\
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grep -E '((^\s*((([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5]))\s*$)|(^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?s*$))'
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fi
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set -e
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}
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sentinel_get_master_retry() {
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master=''
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retry=${1}
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sleep=3
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for i in $(seq 1 "${retry}"); do
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master=$(sentinel_get_master)
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if [ -n "${master}" ]; then
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break
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fi
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sleep $((sleep + i))
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done
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echo "${master}"
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}
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identify_master() {
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echo "Identifying redis master (get-master-addr-by-name).."
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echo " using sentinel ({{ template "redis-ha.fullname" . }}), sentinel group name ({{ template "redis-ha.masterGroupName" . }})"
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MASTER="$(sentinel_get_master_retry 3)"
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if [ -n "${MASTER}" ]; then
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echo " $(date) Found redis master (${MASTER})"
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else
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echo " $(date) Did not find redis master (${MASTER})"
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fi
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}
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sentinel_update() {
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echo "Updating sentinel config.."
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echo " evaluating sentinel id (\${SENTINEL_ID_${INDEX}})"
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eval MY_SENTINEL_ID="\$SENTINEL_ID_${INDEX}"
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echo " sentinel id (${MY_SENTINEL_ID}), sentinel grp (${MASTER_GROUP}), quorum (${QUORUM})"
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sed -i "1s/^/sentinel myid ${MY_SENTINEL_ID}\\n/" "${SENTINEL_CONF}"
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if [ "$SENTINEL_TLS_REPLICATION_ENABLED" = true ]; then
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echo " redis master (${1}:${REDIS_TLS_PORT})"
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sed -i "2s/^/sentinel monitor ${MASTER_GROUP} ${1} ${REDIS_TLS_PORT} ${QUORUM} \\n/" "${SENTINEL_CONF}"
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else
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echo " redis master (${1}:${REDIS_PORT})"
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sed -i "2s/^/sentinel monitor ${MASTER_GROUP} ${1} ${REDIS_PORT} ${QUORUM} \\n/" "${SENTINEL_CONF}"
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fi
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echo "sentinel announce-ip ${ANNOUNCE_IP}" >> ${SENTINEL_CONF}
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if [ "$SENTINEL_PORT" -eq 0 ]; then
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echo " announce (${ANNOUNCE_IP}:${SENTINEL_TLS_PORT})"
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echo "sentinel announce-port ${SENTINEL_TLS_PORT}" >> ${SENTINEL_CONF}
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else
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echo " announce (${ANNOUNCE_IP}:${SENTINEL_PORT})"
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echo "sentinel announce-port ${SENTINEL_PORT}" >> ${SENTINEL_CONF}
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fi
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}
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redis_update() {
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echo "Updating redis config.."
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if [ "$REDIS_TLS_REPLICATION_ENABLED" = true ]; then
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echo " we are slave of redis master (${1}:${REDIS_TLS_PORT})"
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echo "slaveof ${1} ${REDIS_TLS_PORT}" >> "${REDIS_CONF}"
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echo "slave-announce-port ${REDIS_TLS_PORT}" >> ${REDIS_CONF}
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else
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echo " we are slave of redis master (${1}:${REDIS_PORT})"
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echo "slaveof ${1} ${REDIS_PORT}" >> "${REDIS_CONF}"
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echo "slave-announce-port ${REDIS_PORT}" >> ${REDIS_CONF}
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fi
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echo "slave-announce-ip ${ANNOUNCE_IP}" >> ${REDIS_CONF}
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}
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copy_config() {
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echo "Copying default redis config.."
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echo " to '${REDIS_CONF}'"
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cp /readonly-config/redis.conf "${REDIS_CONF}"
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echo "Copying default sentinel config.."
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echo " to '${SENTINEL_CONF}'"
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cp /readonly-config/sentinel.conf "${SENTINEL_CONF}"
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}
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setup_defaults() {
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echo "Setting up defaults.."
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echo " using statefulset index (${INDEX})"
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if [ "${INDEX}" = "0" ]; then
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echo "Setting this pod as master for redis and sentinel.."
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echo " using announce (${ANNOUNCE_IP})"
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redis_update "${ANNOUNCE_IP}"
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sentinel_update "${ANNOUNCE_IP}"
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echo " make sure ${ANNOUNCE_IP} is not a slave (slaveof no one)"
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sed -i "s/^.*slaveof.*//" "${REDIS_CONF}"
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else
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echo "Getting redis master ip.."
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echo " blindly assuming (${SERVICE}-announce-0) or (${SERVICE}-server-0) are master"
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DEFAULT_MASTER="$(getent_hosts 0 | awk '{ print $1 }')"
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if [ -z "${DEFAULT_MASTER}" ]; then
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echo "Error: Unable to resolve redis master (getent hosts)."
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exit 1
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fi
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echo " identified redis (may be redis master) ip (${DEFAULT_MASTER})"
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echo "Setting default slave config for redis and sentinel.."
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echo " using master ip (${DEFAULT_MASTER})"
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redis_update "${DEFAULT_MASTER}"
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sentinel_update "${DEFAULT_MASTER}"
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fi
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}
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redis_ping() {
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set +e
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if [ "$REDIS_PORT" -eq 0 ]; then
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redis-cli -h "${MASTER}"{{ if .Values.auth }} -a "${AUTH}" --no-auth-warning{{ end }} -p "${REDIS_TLS_PORT}" --tls --cacert /tls-certs/{{ .Values.tls.caCertFile }} {{ if ne (default "yes" .Values.sentinel.authClients) "no"}} --cert /tls-certs/{{ .Values.tls.certFile }} --key /tls-certs/{{ .Values.tls.keyFile }}{{ end }} ping
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else
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redis-cli -h "${MASTER}"{{ if .Values.auth }} -a "${AUTH}" --no-auth-warning{{ end }} -p "${REDIS_PORT}" ping
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||
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fi
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set -e
|
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}
|
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|
||
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redis_ping_retry() {
|
||
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ping=''
|
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retry=${1}
|
||
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sleep=3
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||
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for i in $(seq 1 "${retry}"); do
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if [ "$(redis_ping)" = "PONG" ]; then
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ping='PONG'
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break
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||
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fi
|
||
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sleep $((sleep + i))
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||
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MASTER=$(sentinel_get_master)
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done
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echo "${ping}"
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||
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}
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||
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||
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find_master() {
|
||
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echo "Verifying redis master.."
|
||
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if [ "$REDIS_PORT" -eq 0 ]; then
|
||
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echo " ping (${MASTER}:${REDIS_TLS_PORT})"
|
||
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else
|
||
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echo " ping (${MASTER}:${REDIS_PORT})"
|
||
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fi
|
||
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if [ "$(redis_ping_retry 3)" != "PONG" ]; then
|
||
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echo " $(date) Can't ping redis master (${MASTER})"
|
||
|
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echo "Attempting to force failover (sentinel failover).."
|
||
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|
||
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if [ "$SENTINEL_PORT" -eq 0 ]; then
|
||
|
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echo " on sentinel (${SERVICE}:${SENTINEL_TLS_PORT}), sentinel grp (${MASTER_GROUP})"
|
||
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if redis-cli -h "${SERVICE}" -p "${SENTINEL_TLS_PORT}" {{ if .Values.sentinel.auth }} -a "${SENTINELAUTH}" --no-auth-warning{{ end }} --tls --cacert /tls-certs/{{ .Values.tls.caCertFile }} {{ if ne (default "yes" .Values.sentinel.authClients) "no"}} --cert /tls-certs/{{ .Values.tls.certFile }} --key /tls-certs/{{ .Values.tls.keyFile }}{{ end }} sentinel failover "${MASTER_GROUP}" | grep -q 'NOGOODSLAVE' ; then
|
||
|
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echo " $(date) Failover returned with 'NOGOODSLAVE'"
|
||
|
|
echo "Setting defaults for this pod.."
|
||
|
|
setup_defaults
|
||
|
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return 0
|
||
|
|
fi
|
||
|
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else
|
||
|
|
echo " on sentinel (${SERVICE}:${SENTINEL_PORT}), sentinel grp (${MASTER_GROUP})"
|
||
|
|
if redis-cli -h "${SERVICE}" -p "${SENTINEL_PORT}" {{ if .Values.sentinel.auth }} -a "${SENTINELAUTH}" --no-auth-warning{{ end }} sentinel failover "${MASTER_GROUP}" | grep -q 'NOGOODSLAVE' ; then
|
||
|
|
echo " $(date) Failover returned with 'NOGOODSLAVE'"
|
||
|
|
echo "Setting defaults for this pod.."
|
||
|
|
setup_defaults
|
||
|
|
return 0
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
echo "Hold on for 10sec"
|
||
|
|
sleep 10
|
||
|
|
echo "We should get redis master's ip now. Asking (get-master-addr-by-name).."
|
||
|
|
if [ "$SENTINEL_PORT" -eq 0 ]; then
|
||
|
|
echo " sentinel (${SERVICE}:${SENTINEL_TLS_PORT}), sentinel grp (${MASTER_GROUP})"
|
||
|
|
else
|
||
|
|
echo " sentinel (${SERVICE}:${SENTINEL_PORT}), sentinel grp (${MASTER_GROUP})"
|
||
|
|
fi
|
||
|
|
MASTER="$(sentinel_get_master)"
|
||
|
|
if [ "${MASTER}" ]; then
|
||
|
|
echo " $(date) Found redis master (${MASTER})"
|
||
|
|
echo "Updating redis and sentinel config.."
|
||
|
|
sentinel_update "${MASTER}"
|
||
|
|
redis_update "${MASTER}"
|
||
|
|
else
|
||
|
|
echo "$(date) Error: Could not failover, exiting..."
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
echo " $(date) Found reachable redis master (${MASTER})"
|
||
|
|
echo "Updating redis and sentinel config.."
|
||
|
|
sentinel_update "${MASTER}"
|
||
|
|
redis_update "${MASTER}"
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
redis_ro_update() {
|
||
|
|
echo "Updating read-only redis config.."
|
||
|
|
echo " redis.conf set 'replica-priority 0'"
|
||
|
|
echo "replica-priority 0" >> ${REDIS_CONF}
|
||
|
|
}
|
||
|
|
|
||
|
|
getent_hosts() {
|
||
|
|
index=${1:-${INDEX}}
|
||
|
|
service="${SERVICE}-announce-${index}"
|
||
|
|
host=$(getent hosts "${service}")
|
||
|
|
echo "${host}"
|
||
|
|
}
|
||
|
|
|
||
|
|
identify_announce_ip() {
|
||
|
|
echo "Identify announce ip for this pod.."
|
||
|
|
echo " using (${SERVICE}-announce-${INDEX}) or (${SERVICE}-server-${INDEX})"
|
||
|
|
ANNOUNCE_IP=$(getent_hosts | awk '{ print $1 }')
|
||
|
|
echo " identified announce (${ANNOUNCE_IP})"
|
||
|
|
}
|
||
|
|
{{- end }}
|
||
|
|
|
||
|
|
{{- define "vars.sh" }}
|
||
|
|
HOSTNAME="$(hostname)"
|
||
|
|
{{- if .Values.ro_replicas }}
|
||
|
|
RO_REPLICAS="{{ .Values.ro_replicas }}"
|
||
|
|
{{- end }}
|
||
|
|
INDEX="${HOSTNAME##*-}"
|
||
|
|
SENTINEL_PORT={{ .Values.sentinel.port }}
|
||
|
|
ANNOUNCE_IP=''
|
||
|
|
MASTER=''
|
||
|
|
MASTER_GROUP="{{ template "redis-ha.masterGroupName" . }}"
|
||
|
|
QUORUM="{{ .Values.sentinel.quorum }}"
|
||
|
|
REDIS_CONF=/data/conf/redis.conf
|
||
|
|
REDIS_PORT={{ .Values.redis.port }}
|
||
|
|
REDIS_TLS_PORT={{ .Values.redis.tlsPort }}
|
||
|
|
SENTINEL_CONF=/data/conf/sentinel.conf
|
||
|
|
SENTINEL_TLS_PORT={{ .Values.sentinel.tlsPort }}
|
||
|
|
SERVICE={{ template "redis-ha.fullname" . }}
|
||
|
|
SENTINEL_TLS_REPLICATION_ENABLED={{ default false .Values.sentinel.tlsReplication }}
|
||
|
|
REDIS_TLS_REPLICATION_ENABLED={{ default false .Values.redis.tlsReplication }}
|
||
|
|
{{- end }}
|
||
|
|
|
||
|
|
{{- define "config-init.sh" }}
|
||
|
|
echo "$(date) Start..."
|
||
|
|
{{- include "vars.sh" . }}
|
||
|
|
|
||
|
|
set -eu
|
||
|
|
|
||
|
|
{{- include "lib.sh" . }}
|
||
|
|
|
||
|
|
mkdir -p /data/conf/
|
||
|
|
|
||
|
|
echo "Initializing config.."
|
||
|
|
copy_config
|
||
|
|
|
||
|
|
# where is redis master
|
||
|
|
identify_master
|
||
|
|
|
||
|
|
identify_announce_ip
|
||
|
|
|
||
|
|
if [ -z "${ANNOUNCE_IP}" ]; then
|
||
|
|
"Error: Could not resolve the announce ip for this pod."
|
||
|
|
exit 1
|
||
|
|
elif [ "${MASTER}" ]; then
|
||
|
|
find_master
|
||
|
|
else
|
||
|
|
setup_defaults
|
||
|
|
fi
|
||
|
|
|
||
|
|
{{- if .Values.ro_replicas }}
|
||
|
|
# works only if index is less than 10
|
||
|
|
echo "Verifying redis read-only replica.."
|
||
|
|
echo " we have RO_REPLICAS='${RO_REPLICAS}' with INDEX='${INDEX}'"
|
||
|
|
if echo "${RO_REPLICAS}" | grep -q "${INDEX}" ; then
|
||
|
|
redis_ro_update
|
||
|
|
fi
|
||
|
|
{{- end }}
|
||
|
|
|
||
|
|
if [ "${AUTH:-}" ]; then
|
||
|
|
echo "Setting redis auth values.."
|
||
|
|
ESCAPED_AUTH=$(echo "${AUTH}" | sed -e 's/[\/&]/\\&/g');
|
||
|
|
sed -i "s/replace-default-auth/${ESCAPED_AUTH}/" "${REDIS_CONF}" "${SENTINEL_CONF}"
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ "${SENTINELAUTH:-}" ]; then
|
||
|
|
echo "Setting sentinel auth values"
|
||
|
|
ESCAPED_AUTH_SENTINEL=$(echo "$SENTINELAUTH" | sed -e 's/[\/&]/\\&/g');
|
||
|
|
sed -i "s/replace-default-sentinel-auth/${ESCAPED_AUTH_SENTINEL}/" "$SENTINEL_CONF"
|
||
|
|
fi
|
||
|
|
|
||
|
|
echo "$(date) Ready..."
|
||
|
|
{{- end }}
|
||
|
|
|
||
|
|
{{- define "trigger-failover-if-master.sh" }}
|
||
|
|
{{- if or (eq (int .Values.redis.port) 0) (eq (int .Values.sentinel.port) 0) }}
|
||
|
|
TLS_CLIENT_OPTION="--tls --cacert /tls-certs/{{ .Values.tls.caCertFile }}{{ if ne (default "yes" .Values.sentinel.authClients) "no"}} --cert /tls-certs/{{ .Values.tls.certFile }} --key /tls-certs/{{ .Values.tls.keyFile }}{{end}}"
|
||
|
|
{{- end }}
|
||
|
|
get_redis_role() {
|
||
|
|
is_master=$(
|
||
|
|
redis-cli \
|
||
|
|
{{- if .Values.auth }}
|
||
|
|
-a "${AUTH}" --no-auth-warning \
|
||
|
|
{{- end }}
|
||
|
|
-h localhost \
|
||
|
|
{{- if (int .Values.redis.port) }}
|
||
|
|
-p {{ .Values.redis.port }} \
|
||
|
|
{{- else }}
|
||
|
|
-p {{ .Values.redis.tlsPort }} ${TLS_CLIENT_OPTION} \
|
||
|
|
{{- end}}
|
||
|
|
info | grep -c 'role:master' || true
|
||
|
|
)
|
||
|
|
}
|
||
|
|
get_redis_role
|
||
|
|
if [[ "$is_master" -eq 1 ]]; then
|
||
|
|
echo "This node is currently master, we trigger a failover."
|
||
|
|
{{- $masterGroupName := include "redis-ha.masterGroupName" . }}
|
||
|
|
response=$(
|
||
|
|
redis-cli \
|
||
|
|
{{- if .Values.sentinel.auth }}
|
||
|
|
-a "${SENTINELAUTH}" --no-auth-warning \
|
||
|
|
{{- end }}
|
||
|
|
-h localhost \
|
||
|
|
{{- if (int .Values.sentinel.port) }}
|
||
|
|
-p {{ .Values.sentinel.port }} \
|
||
|
|
{{- else }}
|
||
|
|
-p {{ .Values.sentinel.tlsPort }} ${TLS_CLIENT_OPTION} \
|
||
|
|
{{- end}}
|
||
|
|
SENTINEL failover {{ $masterGroupName }}
|
||
|
|
)
|
||
|
|
if [[ "$response" != "OK" ]] ; then
|
||
|
|
echo "$response"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
timeout=30
|
||
|
|
while [[ "$is_master" -eq 1 && $timeout -gt 0 ]]; do
|
||
|
|
sleep 1
|
||
|
|
get_redis_role
|
||
|
|
timeout=$((timeout - 1))
|
||
|
|
done
|
||
|
|
echo "Failover successful"
|
||
|
|
fi
|
||
|
|
{{- end }}
|
||
|
|
|
||
|
|
{{- define "fix-split-brain.sh" }}
|
||
|
|
{{- include "vars.sh" . }}
|
||
|
|
|
||
|
|
ROLE=''
|
||
|
|
REDIS_MASTER=''
|
||
|
|
|
||
|
|
set -eu
|
||
|
|
|
||
|
|
{{- include "lib.sh" . }}
|
||
|
|
|
||
|
|
redis_role() {
|
||
|
|
set +e
|
||
|
|
if [ "$REDIS_PORT" -eq 0 ]; then
|
||
|
|
ROLE=$(redis-cli {{ if .Values.auth }} -a "${AUTH}" --no-auth-warning{{ end }} -p "${REDIS_TLS_PORT}" --tls --cacert /tls-certs/{{ .Values.tls.caCertFile }} {{ if ne (default "yes" .Values.sentinel.authClients) "no"}} --cert /tls-certs/{{ .Values.tls.certFile }} --key /tls-certs/{{ .Values.tls.keyFile }}{{ end }} info | grep role | sed 's/role://' | sed 's/\r//')
|
||
|
|
else
|
||
|
|
ROLE=$(redis-cli {{ if .Values.auth }} -a "${AUTH}" --no-auth-warning{{ end }} -p "${REDIS_PORT}" info | grep role | sed 's/role://' | sed 's/\r//')
|
||
|
|
fi
|
||
|
|
set -e
|
||
|
|
}
|
||
|
|
|
||
|
|
identify_redis_master() {
|
||
|
|
set +e
|
||
|
|
if [ "$REDIS_PORT" -eq 0 ]; then
|
||
|
|
REDIS_MASTER=$(redis-cli {{ if .Values.auth }} -a "${AUTH}" --no-auth-warning{{ end }} -p "${REDIS_TLS_PORT}" --tls --cacert /tls-certs/{{ .Values.tls.caCertFile }} {{ if ne (default "yes" .Values.sentinel.authClients) "no"}} --cert /tls-certs/{{ .Values.tls.certFile }} --key /tls-certs/{{ .Values.tls.keyFile }}{{ end }} info | grep master_host | sed 's/master_host://' | sed 's/\r//')
|
||
|
|
else
|
||
|
|
REDIS_MASTER=$(redis-cli {{ if .Values.auth }} -a "${AUTH}" --no-auth-warning{{ end }} -p "${REDIS_PORT}" info | grep master_host | sed 's/master_host://' | sed 's/\r//')
|
||
|
|
fi
|
||
|
|
set -e
|
||
|
|
}
|
||
|
|
|
||
|
|
reinit() {
|
||
|
|
set +e
|
||
|
|
sh /readonly-config/init.sh
|
||
|
|
|
||
|
|
if [ "$REDIS_PORT" -eq 0 ]; then
|
||
|
|
echo "shutdown" | redis-cli {{ if .Values.auth }} -a "${AUTH}" --no-auth-warning{{ end }} -p "${REDIS_TLS_PORT}" --tls --cacert /tls-certs/{{ .Values.tls.caCertFile }} {{ if ne (default "yes" .Values.sentinel.authClients) "no"}} --cert /tls-certs/{{ .Values.tls.certFile }} --key /tls-certs/{{ .Values.tls.keyFile }}{{ end }}
|
||
|
|
else
|
||
|
|
echo "shutdown" | redis-cli {{ if .Values.auth }} -a "${AUTH}" --no-auth-warning{{ end }} -p "${REDIS_PORT}"
|
||
|
|
fi
|
||
|
|
set -e
|
||
|
|
}
|
||
|
|
|
||
|
|
identify_announce_ip
|
||
|
|
|
||
|
|
while [ -z "${ANNOUNCE_IP}" ]; do
|
||
|
|
echo "Error: Could not resolve the announce ip for this pod."
|
||
|
|
sleep 30
|
||
|
|
identify_announce_ip
|
||
|
|
done
|
||
|
|
|
||
|
|
trap "exit 0" TERM
|
||
|
|
while true; do
|
||
|
|
sleep {{ .Values.splitBrainDetection.interval }}
|
||
|
|
|
||
|
|
# where is redis master
|
||
|
|
identify_master
|
||
|
|
|
||
|
|
if [ "$MASTER" = "$ANNOUNCE_IP" ]; then
|
||
|
|
redis_role
|
||
|
|
if [ "$ROLE" != "master" ]; then
|
||
|
|
reinit
|
||
|
|
fi
|
||
|
|
elif [ "${MASTER}" ]; then
|
||
|
|
identify_redis_master
|
||
|
|
if [ "$REDIS_MASTER" != "$MASTER" ]; then
|
||
|
|
reinit
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
|
||
|
|
{{- end }}
|
||
|
|
|
||
|
|
{{- define "config-haproxy.cfg" }}
|
||
|
|
{{- if .Values.haproxy.customConfig }}
|
||
|
|
{{ tpl .Values.haproxy.customConfig . | indent 4 }}
|
||
|
|
{{- else }}
|
||
|
|
defaults REDIS
|
||
|
|
mode tcp
|
||
|
|
timeout connect {{ .Values.haproxy.timeout.connect }}
|
||
|
|
timeout server {{ .Values.haproxy.timeout.server }}
|
||
|
|
timeout client {{ .Values.haproxy.timeout.client }}
|
||
|
|
timeout check {{ .Values.haproxy.timeout.check }}
|
||
|
|
|
||
|
|
listen health_check_http_url
|
||
|
|
bind {{ if .Values.haproxy.IPv6.enabled }}[::]{{ end }}:8888 {{ if .Values.haproxy.IPv6.enabled }}v4v6{{ end }}
|
||
|
|
mode http
|
||
|
|
monitor-uri /healthz
|
||
|
|
option dontlognull
|
||
|
|
|
||
|
|
{{- $root := . }}
|
||
|
|
{{- $fullName := include "redis-ha.fullname" . }}
|
||
|
|
{{- $replicas := int (toString .Values.replicas) }}
|
||
|
|
{{- $masterGroupName := include "redis-ha.masterGroupName" . }}
|
||
|
|
{{- range $i := until $replicas }}
|
||
|
|
# Check Sentinel and whether they are nominated master
|
||
|
|
backend check_if_redis_is_master_{{ $i }}
|
||
|
|
mode tcp
|
||
|
|
option tcp-check
|
||
|
|
tcp-check connect
|
||
|
|
{{- if $root.Values.sentinel.auth }}
|
||
|
|
tcp-check send "AUTH ${SENTINELAUTH}"\r\n
|
||
|
|
tcp-check expect string +OK
|
||
|
|
{{- end }}
|
||
|
|
tcp-check send PING\r\n
|
||
|
|
tcp-check expect string +PONG
|
||
|
|
tcp-check send SENTINEL\ get-master-addr-by-name\ {{ $masterGroupName }}\r\n
|
||
|
|
tcp-check expect string REPLACE_ANNOUNCE{{ $i }}
|
||
|
|
tcp-check send QUIT\r\n
|
||
|
|
{{- range $i := until $replicas }}
|
||
|
|
server R{{ $i }} {{ $fullName }}-announce-{{ $i }}:26379 check inter {{ $root.Values.haproxy.checkInterval }}
|
||
|
|
{{- end }}
|
||
|
|
{{- end }}
|
||
|
|
|
||
|
|
# decide redis backend to use
|
||
|
|
#master
|
||
|
|
frontend ft_redis_master
|
||
|
|
{{- if .Values.haproxy.tls.enabled }}
|
||
|
|
bind {{ if .Values.haproxy.IPv6.enabled }}[::]{{ end }}:{{ $root.Values.haproxy.containerPort }} ssl crt {{ .Values.haproxy.tls.certMountPath }}{{ .Values.haproxy.tls.keyName }} {{ if .Values.haproxy.IPv6.enabled }}v4v6{{ end }}
|
||
|
|
{{ else }}
|
||
|
|
bind {{ if .Values.haproxy.IPv6.enabled }}[::]{{ end }}:{{ $root.Values.redis.port }} {{ if .Values.haproxy.IPv6.enabled }}v4v6{{ end }}
|
||
|
|
{{- end }}
|
||
|
|
use_backend bk_redis_master
|
||
|
|
{{- if .Values.haproxy.readOnly.enabled }}
|
||
|
|
#slave
|
||
|
|
frontend ft_redis_slave
|
||
|
|
bind {{ if .Values.haproxy.IPv6.enabled }}[::]{{ end }}:{{ .Values.haproxy.readOnly.port }} {{ if .Values.haproxy.IPv6.enabled }}v4v6{{ end }}
|
||
|
|
use_backend bk_redis_slave
|
||
|
|
{{- end }}
|
||
|
|
# Check all redis servers to see if they think they are master
|
||
|
|
backend bk_redis_master
|
||
|
|
{{- if .Values.haproxy.stickyBalancing }}
|
||
|
|
balance source
|
||
|
|
hash-type consistent
|
||
|
|
{{- end }}
|
||
|
|
mode tcp
|
||
|
|
option tcp-check
|
||
|
|
tcp-check connect
|
||
|
|
{{- if .Values.auth }}
|
||
|
|
tcp-check send "AUTH ${AUTH}"\r\n
|
||
|
|
tcp-check expect string +OK
|
||
|
|
{{- end }}
|
||
|
|
tcp-check send PING\r\n
|
||
|
|
tcp-check expect string +PONG
|
||
|
|
tcp-check send info\ replication\r\n
|
||
|
|
tcp-check expect string role:master
|
||
|
|
tcp-check send QUIT\r\n
|
||
|
|
tcp-check expect string +OK
|
||
|
|
{{- range $i := until $replicas }}
|
||
|
|
use-server R{{ $i }} if { srv_is_up(R{{ $i }}) } { nbsrv(check_if_redis_is_master_{{ $i }}) ge 2 }
|
||
|
|
server R{{ $i }} {{ $fullName }}-announce-{{ $i }}:{{ $root.Values.redis.port }} check inter {{ $root.Values.haproxy.checkInterval }} fall {{ $root.Values.haproxy.checkFall }} rise 1
|
||
|
|
{{- end }}
|
||
|
|
{{- if .Values.haproxy.readOnly.enabled }}
|
||
|
|
backend bk_redis_slave
|
||
|
|
{{- if .Values.haproxy.stickyBalancing }}
|
||
|
|
balance source
|
||
|
|
hash-type consistent
|
||
|
|
{{- end }}
|
||
|
|
mode tcp
|
||
|
|
option tcp-check
|
||
|
|
tcp-check connect
|
||
|
|
{{- if .Values.auth }}
|
||
|
|
tcp-check send "AUTH ${AUTH}"\r\n
|
||
|
|
tcp-check expect string +OK
|
||
|
|
{{- end }}
|
||
|
|
tcp-check send PING\r\n
|
||
|
|
tcp-check expect string +PONG
|
||
|
|
tcp-check send info\ replication\r\n
|
||
|
|
tcp-check expect string role:slave
|
||
|
|
tcp-check send QUIT\r\n
|
||
|
|
tcp-check expect string +OK
|
||
|
|
{{- range $i := until $replicas }}
|
||
|
|
server R{{ $i }} {{ $fullName }}-announce-{{ $i }}:{{ $root.Values.redis.port }} check inter {{ $root.Values.haproxy.checkInterval }} fall {{ $root.Values.haproxy.checkFall }} rise 1
|
||
|
|
{{- end }}
|
||
|
|
{{- end }}
|
||
|
|
{{- if .Values.haproxy.metrics.enabled }}
|
||
|
|
frontend stats
|
||
|
|
mode http
|
||
|
|
bind {{ if .Values.haproxy.IPv6.enabled }}[::]{{ end }}:{{ .Values.haproxy.metrics.port }} {{ if .Values.haproxy.IPv6.enabled }}v4v6{{ end }}
|
||
|
|
http-request use-service prometheus-exporter if { path {{ .Values.haproxy.metrics.scrapePath }} }
|
||
|
|
stats enable
|
||
|
|
stats uri /stats
|
||
|
|
stats refresh 10s
|
||
|
|
{{- end }}
|
||
|
|
{{- if .Values.haproxy.extraConfig }}
|
||
|
|
# Additional configuration
|
||
|
|
{{ .Values.haproxy.extraConfig | indent 4 }}
|
||
|
|
{{- end }}
|
||
|
|
{{- end }}
|
||
|
|
{{- end }}
|
||
|
|
|
||
|
|
|
||
|
|
{{- define "config-haproxy_init.sh" }}
|
||
|
|
HAPROXY_CONF=/data/haproxy.cfg
|
||
|
|
cp /readonly/haproxy.cfg "$HAPROXY_CONF"
|
||
|
|
{{- $fullName := include "redis-ha.fullname" . }}
|
||
|
|
{{- $replicas := int (toString .Values.replicas) }}
|
||
|
|
{{- range $i := until $replicas }}
|
||
|
|
for loop in $(seq 1 10); do
|
||
|
|
getent hosts {{ $fullName }}-announce-{{ $i }} && break
|
||
|
|
echo "Waiting for service {{ $fullName }}-announce-{{ $i }} to be ready ($loop) ..." && sleep 1
|
||
|
|
done
|
||
|
|
ANNOUNCE_IP{{ $i }}=$(getent hosts "{{ $fullName }}-announce-{{ $i }}" | awk '{ print $1 }')
|
||
|
|
if [ -z "$ANNOUNCE_IP{{ $i }}" ]; then
|
||
|
|
echo "Could not resolve the announce ip for {{ $fullName }}-announce-{{ $i }}"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
sed -i "s/REPLACE_ANNOUNCE{{ $i }}/$ANNOUNCE_IP{{ $i }}/" "$HAPROXY_CONF"
|
||
|
|
|
||
|
|
{{- end }}
|
||
|
|
{{- end }}
|
||
|
|
|
||
|
|
{{- define "redis_liveness.sh" }}
|
||
|
|
{{- if not (ne (int .Values.sentinel.port) 0) }}
|
||
|
|
TLS_CLIENT_OPTION="--tls --cacert /tls-certs/{{ .Values.tls.caCertFile }}{{ if ne (default "yes" .Values.sentinel.authClients) "no"}} --cert /tls-certs/{{ .Values.tls.certFile }} --key /tls-certs/{{ .Values.tls.keyFile }}{{end}}"
|
||
|
|
{{- end }}
|
||
|
|
response=$(
|
||
|
|
redis-cli \
|
||
|
|
{{- if .Values.auth }}
|
||
|
|
-a "${AUTH}" --no-auth-warning \
|
||
|
|
{{- end }}
|
||
|
|
-h localhost \
|
||
|
|
{{- if ne (int .Values.redis.port) 0 }}
|
||
|
|
-p {{ .Values.redis.port }} \
|
||
|
|
{{- else }}
|
||
|
|
-p {{ .Values.redis.tlsPort }} ${TLS_CLIENT_OPTION} \
|
||
|
|
{{- end}}
|
||
|
|
ping
|
||
|
|
)
|
||
|
|
echo "response=$response"
|
||
|
|
case $response in
|
||
|
|
PONG|LOADING*) ;;
|
||
|
|
*) exit 1 ;;
|
||
|
|
esac
|
||
|
|
exit 0
|
||
|
|
{{- end }}
|
||
|
|
|
||
|
|
{{- define "redis_readiness.sh" }}
|
||
|
|
{{- if not (ne (int .Values.sentinel.port) 0) }}
|
||
|
|
TLS_CLIENT_OPTION="--tls --cacert /tls-certs/{{ .Values.tls.caCertFile }}{{ if ne (default "yes" .Values.sentinel.authClients) "no"}} --cert /tls-certs/{{ .Values.tls.certFile }} --key /tls-certs/{{ .Values.tls.keyFile }}{{end}}"
|
||
|
|
{{- end }}
|
||
|
|
response=$(
|
||
|
|
redis-cli \
|
||
|
|
{{- if .Values.auth }}
|
||
|
|
-a "${AUTH}" --no-auth-warning \
|
||
|
|
{{- end }}
|
||
|
|
-h localhost \
|
||
|
|
{{- if ne (int .Values.redis.port) 0 }}
|
||
|
|
-p {{ .Values.redis.port }} \
|
||
|
|
{{- else }}
|
||
|
|
-p {{ .Values.redis.tlsPort }} ${TLS_CLIENT_OPTION} \
|
||
|
|
{{- end}}
|
||
|
|
ping
|
||
|
|
)
|
||
|
|
if [ "$response" != "PONG" ] ; then
|
||
|
|
echo "ping=$response"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
response=$(
|
||
|
|
redis-cli \
|
||
|
|
{{- if .Values.auth }}
|
||
|
|
-a "${AUTH}" --no-auth-warning \
|
||
|
|
{{- end }}
|
||
|
|
-h localhost \
|
||
|
|
{{- if ne (int .Values.redis.port) 0 }}
|
||
|
|
-p {{ .Values.redis.port }} \
|
||
|
|
{{- else }}
|
||
|
|
-p {{ .Values.redis.tlsPort }} ${TLS_CLIENT_OPTION} \
|
||
|
|
{{- end}}
|
||
|
|
role
|
||
|
|
)
|
||
|
|
role=$( echo "$response" | sed "1!d" )
|
||
|
|
if [ "$role" = "master" ]; then
|
||
|
|
echo "role=$role"
|
||
|
|
exit 0
|
||
|
|
elif [ "$role" = "slave" ]; then
|
||
|
|
repl=$( echo "$response" | sed "4!d" )
|
||
|
|
echo "role=$role; repl=$repl"
|
||
|
|
if [ "$repl" = "connected" ]; then
|
||
|
|
exit 0
|
||
|
|
else
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
echo "role=$role"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
{{- end }}
|
||
|
|
|
||
|
|
{{- define "sentinel_liveness.sh" }}
|
||
|
|
{{- if not (ne (int .Values.sentinel.port) 0) }}
|
||
|
|
TLS_CLIENT_OPTION="--tls --cacert /tls-certs/{{ .Values.tls.caCertFile }}{{ if ne (default "yes" .Values.sentinel.authClients) "no"}} --cert /tls-certs/{{ .Values.tls.certFile }} --key /tls-certs/{{ .Values.tls.keyFile }}{{end}}"
|
||
|
|
{{- end }}
|
||
|
|
response=$(
|
||
|
|
redis-cli \
|
||
|
|
{{- if .Values.sentinel.auth }}
|
||
|
|
-a "${SENTINELAUTH}" --no-auth-warning \
|
||
|
|
{{- end }}
|
||
|
|
-h localhost \
|
||
|
|
{{- if ne (int .Values.sentinel.port) 0 }}
|
||
|
|
-p {{ .Values.sentinel.port }} \
|
||
|
|
{{- else }}
|
||
|
|
-p {{ .Values.sentinel.tlsPort }} ${TLS_CLIENT_OPTION} \
|
||
|
|
{{- end}}
|
||
|
|
ping
|
||
|
|
)
|
||
|
|
if [ "$response" != "PONG" ]; then
|
||
|
|
echo "$response"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
echo "response=$response"
|
||
|
|
{{- end }}
|
||
|
|
|