862 lines
36 KiB
YAML
862 lines
36 KiB
YAML
{{- /*
|
|
Copyright Broadcom, Inc. All Rights Reserved.
|
|
SPDX-License-Identifier: APACHE-2.0
|
|
*/}}
|
|
|
|
apiVersion: v1
|
|
kind: ConfigMap
|
|
metadata:
|
|
name: {{ printf "%s-scripts" (include "common.names.fullname" .) }}
|
|
namespace: {{ include "common.names.namespace" . | quote }}
|
|
labels: {{- include "common.labels.standard" ( dict "customLabels" .Values.commonLabels "context" $ ) | nindent 4 }}
|
|
{{- if .Values.commonAnnotations }}
|
|
annotations: {{- include "common.tplvalues.render" ( dict "value" .Values.commonAnnotations "context" $ ) | nindent 4 }}
|
|
{{- end }}
|
|
data:
|
|
{{- if and (eq .Values.architecture "replication") .Values.sentinel.enabled }}
|
|
start-node.sh: |
|
|
#!/bin/bash
|
|
|
|
. /opt/bitnami/scripts/libos.sh
|
|
. /opt/bitnami/scripts/liblog.sh
|
|
. /opt/bitnami/scripts/libvalidations.sh
|
|
|
|
get_port() {
|
|
hostname="$1"
|
|
type="$2"
|
|
|
|
port_var=$(echo "${hostname^^}_SERVICE_PORT_$type" | sed "s/-/_/g")
|
|
port=${!port_var}
|
|
|
|
if [ -z "$port" ]; then
|
|
case $type in
|
|
"SENTINEL")
|
|
echo {{ .Values.sentinel.containerPorts.sentinel }}
|
|
;;
|
|
"REDIS")
|
|
echo {{ .Values.master.containerPorts.redis }}
|
|
;;
|
|
esac
|
|
else
|
|
echo $port
|
|
fi
|
|
}
|
|
|
|
get_full_hostname() {
|
|
hostname="$1"
|
|
|
|
{{- if .Values.useExternalDNS.enabled }}
|
|
full_hostname="${hostname}.{{- include "redis.externalDNS.suffix" . }}"
|
|
{{- else if eq .Values.sentinel.service.type "NodePort" }}
|
|
full_hostname="${hostname}.{{- include "common.names.namespace" . }}"
|
|
{{- else }}
|
|
full_hostname="${hostname}.${HEADLESS_SERVICE}"
|
|
{{- end }}
|
|
|
|
{{- if .Values.useHostnames }}
|
|
echo "${full_hostname}"
|
|
{{- else }}
|
|
retry_count=0
|
|
until getent hosts "${full_hostname}" | awk '{ print $1; exit }' | grep .; do
|
|
if [[ $retry_count -lt {{ .Values.nameResolutionThreshold }} ]]; then
|
|
sleep {{ .Values.nameResolutionTimeout }}
|
|
else
|
|
error "IP address for ${full_hostname} not found"
|
|
exit 1
|
|
fi
|
|
((retry_count++))
|
|
done
|
|
{{- end }}
|
|
}
|
|
|
|
REDISPORT=$(get_port "$HOSTNAME" "REDIS")
|
|
|
|
HEADLESS_SERVICE="{{ template "common.names.fullname" . }}-headless.{{ include "common.names.namespace" . }}.svc.{{ .Values.clusterDomain }}"
|
|
|
|
if [ -n "$REDIS_EXTERNAL_MASTER_HOST" ]; then
|
|
REDIS_SERVICE="$REDIS_EXTERNAL_MASTER_HOST"
|
|
else
|
|
REDIS_SERVICE="{{ template "common.names.fullname" . }}.{{ include "common.names.namespace" . }}.svc.{{ .Values.clusterDomain }}"
|
|
fi
|
|
|
|
SENTINEL_SERVICE_PORT=$(get_port "{{ include "common.names.fullname" . }}" "SENTINEL")
|
|
|
|
redis_cli_command() {
|
|
local timeout="${1:-0}"
|
|
|
|
local args=("-h" "$REDIS_SERVICE" "-p" "$SENTINEL_SERVICE_PORT")
|
|
local command="redis-cli"
|
|
if is_boolean_yes "$REDIS_TLS_ENABLED"; then
|
|
args+=("--tls" "--cert" "$REDIS_TLS_CERT_FILE" "--key" "$REDIS_TLS_KEY_FILE")
|
|
[ -n "$REDIS_TLS_CA_FILE" ] && args+=("--cacert" "$REDIS_TLS_CA_FILE")
|
|
fi
|
|
if [ "$timeout" -gt 0 ]; then
|
|
command="timeout $timeout $command"
|
|
fi
|
|
|
|
echo "{{- if and .Values.auth.enabled .Values.auth.sentinel }}REDISCLI_AUTH="\$REDIS_PASSWORD" {{ end }} $command ${args[*]}"
|
|
}
|
|
|
|
validate_quorum() {
|
|
quorum_info_command="$(redis_cli_command) sentinel master {{ .Values.sentinel.masterSet }}"
|
|
info "about to run the command: $quorum_info_command"
|
|
eval $quorum_info_command | grep -Fq "s_down"
|
|
}
|
|
|
|
trigger_manual_failover() {
|
|
failover_command="$(redis_cli_command) sentinel failover {{ .Values.sentinel.masterSet }}"
|
|
info "about to run the command: $failover_command"
|
|
eval $failover_command
|
|
}
|
|
|
|
get_sentinel_master_info() {
|
|
sentinel_info_command="$(redis_cli_command {{ .Values.sentinel.getMasterTimeout }}) sentinel get-master-addr-by-name {{ .Values.sentinel.masterSet }}"
|
|
info "about to run the command: $sentinel_info_command"
|
|
retry_while "eval $sentinel_info_command" 2 5
|
|
}
|
|
|
|
{{- if and .Values.replica.containerSecurityContext.runAsUser (eq (.Values.replica.containerSecurityContext.runAsUser | int) 0) }}
|
|
useradd redis
|
|
chown -R redis {{ .Values.replica.persistence.path }}
|
|
{{- end }}
|
|
|
|
[[ -f $REDIS_PASSWORD_FILE ]] && export REDIS_PASSWORD="$(< "${REDIS_PASSWORD_FILE}")"
|
|
[[ -f $REDIS_MASTER_PASSWORD_FILE ]] && export REDIS_MASTER_PASSWORD="$(< "${REDIS_MASTER_PASSWORD_FILE}")"
|
|
|
|
# check if there is a master
|
|
master_in_persisted_conf="$(get_full_hostname "$HOSTNAME")"
|
|
master_port_in_persisted_conf="$REDIS_MASTER_PORT_NUMBER"
|
|
master_in_sentinel="$(get_sentinel_master_info)"
|
|
redisRetVal=$?
|
|
|
|
if [[ -f /opt/bitnami/redis-sentinel/etc/sentinel.conf ]]; then
|
|
master_in_persisted_conf="$(awk '/monitor/ {print $4}' /opt/bitnami/redis-sentinel/etc/sentinel.conf)"
|
|
master_port_in_persisted_conf="$(awk '/monitor/ {print $5}' /opt/bitnami/redis-sentinel/etc/sentinel.conf)"
|
|
info "Found previous master ${master_in_persisted_conf}:${master_port_in_persisted_conf} in /opt/bitnami/redis-sentinel/etc/sentinel.conf"
|
|
debug "$(cat /opt/bitnami/redis-sentinel/etc/sentinel.conf | grep monitor)"
|
|
fi
|
|
|
|
if [[ -f /opt/bitnami/redis/mounted-etc/users.acl ]];then
|
|
cp /opt/bitnami/redis/mounted-etc/users.acl /opt/bitnami/redis/etc/users.acl
|
|
fi
|
|
|
|
if [[ $redisRetVal -ne 0 ]]; then
|
|
if [[ "$master_in_persisted_conf" == "$(get_full_hostname "$HOSTNAME")" ]]; then
|
|
# Case 1: No active sentinel and in previous sentinel.conf we were the master --> MASTER
|
|
info "Configuring the node as master"
|
|
export REDIS_REPLICATION_MODE="master"
|
|
else
|
|
# Case 2: No active sentinel and in previous sentinel.conf we were not master --> REPLICA
|
|
info "Configuring the node as replica"
|
|
export REDIS_REPLICATION_MODE="replica"
|
|
REDIS_MASTER_HOST=${master_in_persisted_conf}
|
|
REDIS_MASTER_PORT_NUMBER=${master_port_in_persisted_conf}
|
|
fi
|
|
else
|
|
# Fetches current master's host and port
|
|
REDIS_SENTINEL_INFO=($(get_sentinel_master_info))
|
|
info "Current master: REDIS_SENTINEL_INFO=(${REDIS_SENTINEL_INFO[0]},${REDIS_SENTINEL_INFO[1]})"
|
|
REDIS_MASTER_HOST=${REDIS_SENTINEL_INFO[0]}
|
|
REDIS_MASTER_PORT_NUMBER=${REDIS_SENTINEL_INFO[1]}
|
|
|
|
if [[ "$REDIS_MASTER_HOST" == "$(get_full_hostname "$HOSTNAME")" ]]; then
|
|
# Case 3: Active sentinel and master it is this node --> MASTER
|
|
info "Configuring the node as master"
|
|
export REDIS_REPLICATION_MODE="master"
|
|
else
|
|
# Case 4: Active sentinel and master is not this node --> REPLICA
|
|
info "Configuring the node as replica"
|
|
export REDIS_REPLICATION_MODE="replica"
|
|
|
|
{{- if and .Values.sentinel.automateClusterRecovery (le (int .Values.sentinel.downAfterMilliseconds) 2000) }}
|
|
retry_count=1
|
|
while validate_quorum
|
|
do
|
|
info "sleeping, waiting for Redis master to come up"
|
|
sleep 1s
|
|
if ! ((retry_count % 11)); then
|
|
info "Trying to manually failover"
|
|
failover_result=$(trigger_manual_failover)
|
|
|
|
debug "Failover result: $failover_result"
|
|
fi
|
|
|
|
((retry_count+=1))
|
|
done
|
|
info "Redis master is up now"
|
|
{{- end }}
|
|
fi
|
|
fi
|
|
|
|
if [[ -n "$REDIS_EXTERNAL_MASTER_HOST" ]]; then
|
|
REDIS_MASTER_HOST="$REDIS_EXTERNAL_MASTER_HOST"
|
|
REDIS_MASTER_PORT_NUMBER="${REDIS_EXTERNAL_MASTER_PORT}"
|
|
fi
|
|
|
|
if [[ -f /opt/bitnami/redis/mounted-etc/replica.conf ]];then
|
|
cp /opt/bitnami/redis/mounted-etc/replica.conf /opt/bitnami/redis/etc/replica.conf
|
|
fi
|
|
|
|
if [[ -f /opt/bitnami/redis/mounted-etc/redis.conf ]];then
|
|
cp /opt/bitnami/redis/mounted-etc/redis.conf /opt/bitnami/redis/etc/redis.conf
|
|
fi
|
|
|
|
echo "" >> /opt/bitnami/redis/etc/replica.conf
|
|
echo "replica-announce-port $REDISPORT" >> /opt/bitnami/redis/etc/replica.conf
|
|
{{- if .Values.sentinel.externalAccess.enabled }}
|
|
if [[ -n "${REDIS_CLUSTER_ANNOUNCE_IP}" ]]; then
|
|
echo "replica-announce-ip $REDIS_CLUSTER_ANNOUNCE_IP" >> /opt/bitnami/redis/etc/replica.conf
|
|
else
|
|
echo "replica-announce-ip $(get_full_hostname "$HOSTNAME")" >> /opt/bitnami/redis/etc/replica.conf
|
|
fi
|
|
{{- else }}
|
|
echo "replica-announce-ip $(get_full_hostname "$HOSTNAME")" >> /opt/bitnami/redis/etc/replica.conf
|
|
{{- end }}
|
|
{{- if .Values.tls.enabled }}
|
|
ARGS=("--port" "0")
|
|
ARGS+=("--tls-port" "${REDIS_TLS_PORT}")
|
|
ARGS+=("--tls-cert-file" "${REDIS_TLS_CERT_FILE}")
|
|
ARGS+=("--tls-key-file" "${REDIS_TLS_KEY_FILE}")
|
|
{{- if not (empty (include "redis.tlsCACert" .)) }}
|
|
ARGS+=("--tls-ca-cert-file" "${REDIS_TLS_CA_FILE}")
|
|
{{- end }}
|
|
ARGS+=("--tls-auth-clients" "${REDIS_TLS_AUTH_CLIENTS}")
|
|
ARGS+=("--tls-replication" "yes")
|
|
{{- if .Values.tls.dhParamsFilename }}
|
|
ARGS+=("--tls-dh-params-file" "${REDIS_TLS_DH_PARAMS_FILE}")
|
|
{{- end }}
|
|
{{- else }}
|
|
ARGS=("--port" "${REDIS_PORT}")
|
|
{{- end }}
|
|
|
|
if [[ "$REDIS_REPLICATION_MODE" = "slave" ]] || [[ "$REDIS_REPLICATION_MODE" = "replica" ]]; then
|
|
ARGS+=("--replicaof" "${REDIS_MASTER_HOST}" "${REDIS_MASTER_PORT_NUMBER}")
|
|
fi
|
|
|
|
{{- if .Values.auth.enabled }}
|
|
ARGS+=("--requirepass" "${REDIS_PASSWORD}")
|
|
ARGS+=("--masterauth" "${REDIS_MASTER_PASSWORD}")
|
|
{{- else }}
|
|
ARGS+=("--protected-mode" "no")
|
|
{{- end }}
|
|
ARGS+=("--include" "/opt/bitnami/redis/etc/replica.conf")
|
|
ARGS+=("--include" "/opt/bitnami/redis/etc/redis.conf")
|
|
{{- if .Values.replica.extraFlags }}
|
|
{{- range .Values.replica.extraFlags }}
|
|
ARGS+=({{ . | quote }})
|
|
{{- end }}
|
|
{{- end }}
|
|
|
|
{{- if .Values.replica.preExecCmds }}
|
|
{{- range $command := .Values.replica.preExecCmds }}
|
|
{{- $command | nindent 4 }}
|
|
{{- end }}
|
|
{{- end }}
|
|
|
|
{{- if .Values.replica.command }}
|
|
exec {{ .Values.replica.command }} "${ARGS[@]}"
|
|
{{- else }}
|
|
exec redis-server "${ARGS[@]}"
|
|
{{- end }}
|
|
|
|
start-sentinel.sh: |
|
|
#!/bin/bash
|
|
|
|
. /opt/bitnami/scripts/libos.sh
|
|
. /opt/bitnami/scripts/libvalidations.sh
|
|
. /opt/bitnami/scripts/libfile.sh
|
|
|
|
HEADLESS_SERVICE="{{ template "common.names.fullname" . }}-headless.{{ include "common.names.namespace" . }}.svc.{{ .Values.clusterDomain }}"
|
|
REDIS_SERVICE="{{ template "common.names.fullname" . }}.{{ include "common.names.namespace" . }}.svc.{{ .Values.clusterDomain }}"
|
|
|
|
get_port() {
|
|
hostname="$1"
|
|
type="$2"
|
|
|
|
port_var=$(echo "${hostname^^}_SERVICE_PORT_$type" | sed "s/-/_/g")
|
|
port=${!port_var}
|
|
|
|
if [ -z "$port" ]; then
|
|
case $type in
|
|
"SENTINEL")
|
|
echo {{ .Values.sentinel.containerPorts.sentinel }}
|
|
;;
|
|
"REDIS")
|
|
echo {{ .Values.master.containerPorts.redis }}
|
|
;;
|
|
esac
|
|
else
|
|
echo $port
|
|
fi
|
|
}
|
|
|
|
get_full_hostname() {
|
|
hostname="$1"
|
|
|
|
{{- if .Values.useExternalDNS.enabled }}
|
|
full_hostname="${hostname}.{{- include "redis.externalDNS.suffix" . }}"
|
|
{{- else if eq .Values.sentinel.service.type "NodePort" }}
|
|
full_hostname="${hostname}.{{- include "common.names.namespace" . }}"
|
|
{{- else }}
|
|
full_hostname="${hostname}.${HEADLESS_SERVICE}"
|
|
{{- end }}
|
|
|
|
{{- if .Values.useHostnames }}
|
|
echo "${full_hostname}"
|
|
{{- else }}
|
|
retry_count=0
|
|
until getent hosts "${full_hostname}" | awk '{ print $1; exit }' | grep .; do
|
|
if [[ $retry_count -lt {{ .Values.nameResolutionThreshold }} ]]; then
|
|
sleep {{ .Values.nameResolutionTimeout }}
|
|
else
|
|
error "IP address for ${full_hostname} not found"
|
|
exit 1
|
|
fi
|
|
((retry_count++))
|
|
done
|
|
{{- end }}
|
|
}
|
|
|
|
SERVPORT=$(get_port "$HOSTNAME" "SENTINEL")
|
|
REDISPORT=$(get_port "$HOSTNAME" "REDIS")
|
|
SENTINEL_SERVICE_PORT=$(get_port "{{ include "common.names.fullname" . }}" "SENTINEL")
|
|
|
|
sentinel_conf_set() {
|
|
local -r key="${1:?missing key}"
|
|
local value="${2:-}"
|
|
|
|
# Sanitize inputs
|
|
value="${value//\\/\\\\}"
|
|
value="${value//&/\\&}"
|
|
value="${value//\?/\\?}"
|
|
[[ "$value" = "" ]] && value="\"$value\""
|
|
|
|
replace_in_file "/opt/bitnami/redis-sentinel/etc/prepare-sentinel.conf" "^#*\s*${key} .*" "${key} ${value}" false
|
|
}
|
|
sentinel_conf_add() {
|
|
echo $'\n'"$@" >> "/opt/bitnami/redis-sentinel/etc/prepare-sentinel.conf"
|
|
}
|
|
host_id() {
|
|
echo "$1" | openssl sha1 | awk '{print $2}'
|
|
}
|
|
get_sentinel_master_info() {
|
|
if is_boolean_yes "$REDIS_SENTINEL_TLS_ENABLED"; then
|
|
sentinel_info_command="{{- if and .Values.auth.enabled .Values.auth.sentinel }}REDISCLI_AUTH="\$REDIS_PASSWORD" {{ end }}timeout {{ .Values.sentinel.getMasterTimeout }} redis-cli -h $REDIS_SERVICE -p $SENTINEL_SERVICE_PORT --tls --cert ${REDIS_SENTINEL_TLS_CERT_FILE} --key ${REDIS_SENTINEL_TLS_KEY_FILE} --cacert ${REDIS_SENTINEL_TLS_CA_FILE} sentinel get-master-addr-by-name {{ .Values.sentinel.masterSet }}"
|
|
else
|
|
sentinel_info_command="{{- if and .Values.auth.enabled .Values.auth.sentinel }}REDISCLI_AUTH="\$REDIS_PASSWORD" {{ end }}timeout {{ .Values.sentinel.getMasterTimeout }} redis-cli -h $REDIS_SERVICE -p $SENTINEL_SERVICE_PORT sentinel get-master-addr-by-name {{ .Values.sentinel.masterSet }}"
|
|
fi
|
|
info "about to run the command: $sentinel_info_command"
|
|
retry_while "eval $sentinel_info_command" 2 5
|
|
}
|
|
|
|
[[ -f $REDIS_PASSWORD_FILE ]] && export REDIS_PASSWORD="$(< "${REDIS_PASSWORD_FILE}")"
|
|
|
|
master_in_persisted_conf="$(get_full_hostname "$HOSTNAME")"
|
|
|
|
if [[ -f /opt/bitnami/redis-sentinel/etc/sentinel.conf ]]; then
|
|
master_in_persisted_conf="$(awk '/monitor/ {print $4}' /opt/bitnami/redis-sentinel/etc/sentinel.conf)"
|
|
info "Found previous master $master_in_persisted_conf in /opt/bitnami/redis-sentinel/etc/sentinel.conf"
|
|
debug "$(cat /opt/bitnami/redis-sentinel/etc/sentinel.conf | grep monitor)"
|
|
fi
|
|
REDIS_SENTINEL_INFO=($(get_sentinel_master_info))
|
|
if [ "$?" -eq "0" ]; then
|
|
# current master's host and port obtained from other Sentinel
|
|
info "printing REDIS_SENTINEL_INFO=(${REDIS_SENTINEL_INFO[0]},${REDIS_SENTINEL_INFO[1]})"
|
|
REDIS_MASTER_HOST=${REDIS_SENTINEL_INFO[0]}
|
|
REDIS_MASTER_PORT_NUMBER=${REDIS_SENTINEL_INFO[1]}
|
|
else
|
|
REDIS_MASTER_HOST="$master_in_persisted_conf"
|
|
REDIS_MASTER_PORT_NUMBER="$REDISPORT"
|
|
fi
|
|
if [[ "$REDIS_MASTER_HOST" == "$(get_full_hostname "$HOSTNAME")" ]]; then
|
|
export REDIS_REPLICATION_MODE="master"
|
|
else
|
|
export REDIS_REPLICATION_MODE="replica"
|
|
fi
|
|
|
|
{{- if or .Values.sentinel.masterService.enabled .Values.sentinel.service.createMaster }}
|
|
if [[ "${REDIS_REPLICATION_MODE}" == "master" ]]; then
|
|
# Add isMaster label to master node for master service
|
|
echo "${REDIS_MASTER_HOST/.*}" > /etc/shared/current
|
|
fi
|
|
{{- end }}
|
|
|
|
if [[ -n "$REDIS_EXTERNAL_MASTER_HOST" ]]; then
|
|
REDIS_MASTER_HOST="$REDIS_EXTERNAL_MASTER_HOST"
|
|
REDIS_MASTER_PORT_NUMBER="${REDIS_EXTERNAL_MASTER_PORT}"
|
|
fi
|
|
|
|
# To prevent incomplete configuration and as the redis container accesses /opt/bitnami/redis-sentinel/etc/sentinel.conf
|
|
# as well, prepare the new config in `prepare-sentinel.conf` and move it atomically to the ultimate destination when it is complete.
|
|
cp /opt/bitnami/redis-sentinel/mounted-etc/sentinel.conf /opt/bitnami/redis-sentinel/etc/prepare-sentinel.conf
|
|
{{- if .Values.auth.enabled }}
|
|
printf "\nsentinel auth-pass %s %s" "{{ .Values.sentinel.masterSet }}" "$REDIS_PASSWORD" >> /opt/bitnami/redis-sentinel/etc/prepare-sentinel.conf
|
|
{{- if and .Values.auth.enabled .Values.auth.sentinel }}
|
|
printf "\nrequirepass %s" "$REDIS_PASSWORD" >> /opt/bitnami/redis-sentinel/etc/prepare-sentinel.conf
|
|
{{- end }}
|
|
{{- end }}
|
|
printf "\nsentinel myid %s" "$(host_id "$HOSTNAME")" >> /opt/bitnami/redis-sentinel/etc/prepare-sentinel.conf
|
|
|
|
if [[ -z "$REDIS_MASTER_HOST" ]] || [[ -z "$REDIS_MASTER_PORT_NUMBER" ]]
|
|
then
|
|
# Prevent incorrect configuration to be written to sentinel.conf
|
|
error "Redis master host is configured incorrectly (host: $REDIS_MASTER_HOST, port: $REDIS_MASTER_PORT_NUMBER)"
|
|
exit 1
|
|
fi
|
|
|
|
{{- if .Values.sentinel.externalAccess.enabled }}
|
|
{{- if .Values.sentinel.externalAccess.service.loadBalancerIP }}
|
|
sentinel_conf_set "sentinel monitor" "{{ .Values.sentinel.masterSet }} {{ index .Values.sentinel.externalAccess.service.loadBalancerIP 0 }} "$REDIS_MASTER_PORT_NUMBER" {{ .Values.sentinel.quorum }}"
|
|
{{- end }}
|
|
{{- else }}
|
|
sentinel_conf_set "sentinel monitor" "{{ .Values.sentinel.masterSet }} "$REDIS_MASTER_HOST" "$REDIS_MASTER_PORT_NUMBER" {{ .Values.sentinel.quorum }}"
|
|
{{- end }}
|
|
|
|
add_known_sentinel() {
|
|
hostname="$1"
|
|
ip="$2"
|
|
if [[ -n "$hostname" && -n "$ip" && "$hostname" != "$HOSTNAME" ]]; then
|
|
sentinel_conf_add "sentinel known-sentinel {{ .Values.sentinel.masterSet }} $(get_full_hostname "$hostname") $(get_port "$hostname" "SENTINEL") $(host_id "$hostname")"
|
|
fi
|
|
}
|
|
|
|
add_known_replica() {
|
|
hostname="$1"
|
|
ip="$2"
|
|
if [[ -n "$ip" && "$(get_full_hostname "$hostname")" != "$REDIS_MASTER_HOST" ]]; then
|
|
sentinel_conf_add "sentinel known-replica {{ .Values.sentinel.masterSet }} $(get_full_hostname "$hostname") $(get_port "$hostname" "REDIS")"
|
|
fi
|
|
}
|
|
|
|
add_known_sentinel_public_ip() {
|
|
hostname="$1"
|
|
ip="$2"
|
|
sentinel_conf_add "sentinel known-sentinel {{ .Values.sentinel.masterSet }} $ip $(get_port "$hostname" "SENTINEL") $(host_id "$hostname")"
|
|
}
|
|
|
|
add_known_replica_public_ip() {
|
|
hostname="$1"
|
|
ip="$2"
|
|
sentinel_conf_add "sentinel known-replica {{ .Values.sentinel.masterSet }} $ip $(get_port "$hostname" "REDIS")"
|
|
}
|
|
|
|
for node in $(seq 0 $(({{ .Values.replica.replicaCount }}-1))); do
|
|
hostname="{{ template "common.names.fullname" . }}-node-$node"
|
|
{{- if .Values.sentinel.externalAccess.enabled }}
|
|
{{- if .Values.sentinel.externalAccess.service.loadBalancerIP }}
|
|
ips=($(echo "$REDIS_NODES" | tr " " "\n"))
|
|
ip=${ips[$node]}
|
|
add_known_sentinel_public_ip "$hostname" "$ip"
|
|
add_known_replica_public_ip "$hostname" "$ip"
|
|
{{- end}}
|
|
{{- else }}
|
|
ip="$(getent hosts "$hostname.$HEADLESS_SERVICE" | awk '{ print $1 }')"
|
|
add_known_sentinel "$hostname" "$ip"
|
|
add_known_replica "$hostname" "$ip"
|
|
{{- end}}
|
|
done
|
|
|
|
echo "" >> /opt/bitnami/redis-sentinel/etc/prepare-sentinel.conf
|
|
{{- if not (contains "sentinel announce-hostnames" .Values.sentinel.configuration) }}
|
|
echo "sentinel announce-hostnames yes" >> /opt/bitnami/redis-sentinel/etc/prepare-sentinel.conf
|
|
{{- end }}
|
|
{{- if not (contains "sentinel resolve-hostnames" .Values.sentinel.configuration) }}
|
|
echo "sentinel resolve-hostnames yes" >> /opt/bitnami/redis-sentinel/etc/prepare-sentinel.conf
|
|
{{- end }}
|
|
{{- if not (contains "sentinel announce-port" .Values.sentinel.configuration) }}
|
|
echo "sentinel announce-port $SERVPORT" >> /opt/bitnami/redis-sentinel/etc/prepare-sentinel.conf
|
|
{{- end }}
|
|
{{- if .Values.sentinel.externalAccess.enabled }}
|
|
{{- if not (contains "sentinel announce-ip" .Values.sentinel.configuration) }}
|
|
if [[ -n "${REDIS_CLUSTER_ANNOUNCE_IP}" ]]; then
|
|
echo "sentinel announce-ip $REDIS_CLUSTER_ANNOUNCE_IP" >> /opt/bitnami/redis-sentinel/etc/prepare-sentinel.conf
|
|
else
|
|
echo "sentinel announce-ip $(get_full_hostname "$HOSTNAME")" >> /opt/bitnami/redis-sentinel/etc/prepare-sentinel.conf
|
|
fi
|
|
{{- else }}
|
|
echo "sentinel announce-ip $(get_full_hostname "$HOSTNAME")" >> /opt/bitnami/redis-sentinel/etc/prepare-sentinel.conf
|
|
{{- end}}
|
|
{{- end}}
|
|
|
|
{{- if .Values.tls.enabled }}
|
|
ARGS=("--port" "0")
|
|
ARGS+=("--tls-port" "${REDIS_SENTINEL_TLS_PORT_NUMBER}")
|
|
ARGS+=("--tls-cert-file" "${REDIS_SENTINEL_TLS_CERT_FILE}")
|
|
ARGS+=("--tls-key-file" "${REDIS_SENTINEL_TLS_KEY_FILE}")
|
|
ARGS+=("--tls-ca-cert-file" "${REDIS_SENTINEL_TLS_CA_FILE}")
|
|
ARGS+=("--tls-replication" "yes")
|
|
ARGS+=("--tls-auth-clients" "${REDIS_SENTINEL_TLS_AUTH_CLIENTS}")
|
|
{{- if .Values.tls.dhParamsFilename }}
|
|
ARGS+=("--tls-dh-params-file" "${REDIS_SENTINEL_TLS_DH_PARAMS_FILE}")
|
|
{{- end }}
|
|
{{- end }}
|
|
{{- if .Values.sentinel.preExecCmds }}
|
|
{{- range $command := .Values.sentinel.preExecCmds }}
|
|
{{- $command | nindent 4 }}
|
|
{{- end }}
|
|
{{- end }}
|
|
mv /opt/bitnami/redis-sentinel/etc/prepare-sentinel.conf /opt/bitnami/redis-sentinel/etc/sentinel.conf
|
|
exec redis-server /opt/bitnami/redis-sentinel/etc/sentinel.conf {{- if .Values.tls.enabled }} "${ARGS[@]}" {{- end }} --sentinel
|
|
prestop-sentinel.sh: |
|
|
#!/bin/bash
|
|
|
|
. /opt/bitnami/scripts/libvalidations.sh
|
|
. /opt/bitnami/scripts/libos.sh
|
|
|
|
HEADLESS_SERVICE="{{ template "common.names.fullname" . }}-headless.{{ include "common.names.namespace" . }}.svc.{{ .Values.clusterDomain }}"
|
|
|
|
get_full_hostname() {
|
|
hostname="$1"
|
|
|
|
{{- if .Values.useExternalDNS.enabled }}
|
|
full_hostname="${hostname}.{{- include "redis.externalDNS.suffix" . }}"
|
|
{{- else if eq .Values.sentinel.service.type "NodePort" }}
|
|
full_hostname="${hostname}.{{- include "common.names.namespace" . }}"
|
|
{{- else }}
|
|
full_hostname="${hostname}.${HEADLESS_SERVICE}"
|
|
{{- end }}
|
|
|
|
{{- if .Values.useHostnames }}
|
|
echo "${full_hostname}"
|
|
{{- else }}
|
|
retry_count=0
|
|
until getent hosts "${full_hostname}" | awk '{ print $1; exit }' | grep .; do
|
|
if [[ $retry_count -lt {{ .Values.nameResolutionThreshold }} ]]; then
|
|
sleep {{ .Values.nameResolutionTimeout }}
|
|
else
|
|
error "IP address for ${full_hostname} not found"
|
|
exit 1
|
|
fi
|
|
((retry_count++))
|
|
done
|
|
{{- end }}
|
|
}
|
|
|
|
run_sentinel_command() {
|
|
if is_boolean_yes "$REDIS_SENTINEL_TLS_ENABLED"; then
|
|
redis-cli -h "$REDIS_SERVICE" -p "$REDIS_SENTINEL_TLS_PORT_NUMBER" --tls --cert "$REDIS_SENTINEL_TLS_CERT_FILE" --key "$REDIS_SENTINEL_TLS_KEY_FILE" --cacert "$REDIS_SENTINEL_TLS_CA_FILE" sentinel "$@"
|
|
else
|
|
redis-cli -h "$REDIS_SERVICE" -p "$REDIS_SENTINEL_PORT" sentinel "$@"
|
|
fi
|
|
}
|
|
sentinel_failover_finished() {
|
|
REDIS_SENTINEL_INFO=($(run_sentinel_command get-master-addr-by-name "{{ .Values.sentinel.masterSet }}"))
|
|
REDIS_MASTER_HOST="${REDIS_SENTINEL_INFO[0]}"
|
|
[[ "$REDIS_MASTER_HOST" != "$(get_full_hostname $HOSTNAME)" ]]
|
|
}
|
|
|
|
REDIS_SERVICE="{{ include "common.names.fullname" . }}.{{ include "common.names.namespace" . }}.svc.{{ .Values.clusterDomain }}"
|
|
|
|
{{ if .Values.auth.sentinel -}}
|
|
# redis-cli automatically consumes credentials from the REDISCLI_AUTH variable
|
|
[[ -n "$REDIS_PASSWORD" ]] && export REDISCLI_AUTH="$REDIS_PASSWORD"
|
|
[[ -f "$REDIS_PASSWORD_FILE" ]] && export REDISCLI_AUTH="$(< "${REDIS_PASSWORD_FILE}")"
|
|
{{- end }}
|
|
|
|
if ! sentinel_failover_finished; then
|
|
echo "I am the master pod and you are stopping me. Starting sentinel failover"
|
|
if retry_while "sentinel_failover_finished" "{{ sub .Values.sentinel.terminationGracePeriodSeconds 10 }}" 1; then
|
|
echo "Master has been successfuly failed over to a different pod."
|
|
exit 0
|
|
else
|
|
echo "Master failover failed"
|
|
exit 1
|
|
fi
|
|
else
|
|
exit 0
|
|
fi
|
|
prestop-redis.sh: |
|
|
#!/bin/bash
|
|
|
|
. /opt/bitnami/scripts/libvalidations.sh
|
|
. /opt/bitnami/scripts/libos.sh
|
|
|
|
run_redis_command() {
|
|
local args=("-h" "127.0.0.1")
|
|
if is_boolean_yes "$REDIS_TLS_ENABLED"; then
|
|
args+=("-p" "$REDIS_TLS_PORT" "--tls" "--cert" "$REDIS_TLS_CERT_FILE" "--key" "$REDIS_TLS_KEY_FILE")
|
|
[ -n "$REDIS_TLS_CA_FILE" ] && args+=("--cacert" "$REDIS_TLS_CA_FILE")
|
|
else
|
|
args+=("-p" "$REDIS_PORT")
|
|
fi
|
|
redis-cli "${args[@]}" "$@"
|
|
}
|
|
is_master() {
|
|
REDIS_ROLE=$(run_redis_command role | head -1)
|
|
[[ "$REDIS_ROLE" == "master" ]]
|
|
}
|
|
|
|
HEADLESS_SERVICE="{{ template "common.names.fullname" . }}-headless.{{- include "common.names.namespace" . }}.svc.{{ .Values.clusterDomain }}"
|
|
|
|
get_full_hostname() {
|
|
hostname="$1"
|
|
|
|
{{- if .Values.useExternalDNS.enabled }}
|
|
full_hostname="${hostname}.{{- include "redis.externalDNS.suffix" . }}"
|
|
{{- else if eq .Values.sentinel.service.type "NodePort" }}
|
|
full_hostname="${hostname}.{{- include "common.names.namespace" . }}"
|
|
{{- else }}
|
|
full_hostname="${hostname}.${HEADLESS_SERVICE}"
|
|
{{- end }}
|
|
|
|
{{- if .Values.useHostnames }}
|
|
echo "${full_hostname}"
|
|
{{- else }}
|
|
retry_count=0
|
|
until getent hosts "${full_hostname}" | awk '{ print $1; exit }' | grep .; do
|
|
if [[ $retry_count -lt {{ .Values.nameResolutionThreshold }} ]]; then
|
|
sleep {{ .Values.nameResolutionTimeout }}
|
|
else
|
|
error "IP address for ${full_hostname} not found"
|
|
exit 1
|
|
fi
|
|
((retry_count++))
|
|
done
|
|
{{- end }}
|
|
}
|
|
|
|
run_sentinel_command() {
|
|
if is_boolean_yes "$REDIS_SENTINEL_TLS_ENABLED"; then
|
|
{{ .Values.auth.sentinel | ternary "" "env -u REDISCLI_AUTH " -}} redis-cli -h "$REDIS_SERVICE" -p "$REDIS_SENTINEL_TLS_PORT_NUMBER" --tls --cert "$REDIS_SENTINEL_TLS_CERT_FILE" --key "$REDIS_SENTINEL_TLS_KEY_FILE" --cacert "$REDIS_SENTINEL_TLS_CA_FILE" sentinel "$@"
|
|
else
|
|
{{ .Values.auth.sentinel | ternary "" "env -u REDISCLI_AUTH " -}} redis-cli -h "$REDIS_SERVICE" -p "$REDIS_SENTINEL_PORT" sentinel "$@"
|
|
fi
|
|
}
|
|
sentinel_failover_finished() {
|
|
REDIS_SENTINEL_INFO=($(run_sentinel_command get-master-addr-by-name "{{ .Values.sentinel.masterSet }}"))
|
|
REDIS_MASTER_HOST="${REDIS_SENTINEL_INFO[0]}"
|
|
[[ "$REDIS_MASTER_HOST" != "$(get_full_hostname $HOSTNAME)" ]]
|
|
}
|
|
|
|
REDIS_SERVICE="{{ include "common.names.fullname" . }}.{{ include "common.names.namespace" . }}.svc.{{ .Values.clusterDomain }}"
|
|
|
|
# redis-cli automatically consumes credentials from the REDISCLI_AUTH variable
|
|
[[ -n "$REDIS_PASSWORD" ]] && export REDISCLI_AUTH="$REDIS_PASSWORD"
|
|
[[ -f "$REDIS_PASSWORD_FILE" ]] && export REDISCLI_AUTH="$(< "${REDIS_PASSWORD_FILE}")"
|
|
|
|
|
|
if is_master && ! sentinel_failover_finished; then
|
|
echo "I am the master pod and you are stopping me. Pausing client connections."
|
|
# Pausing client write connections to avoid data loss
|
|
run_redis_command CLIENT PAUSE "{{ mul (add 2 (sub .Values.sentinel.terminationGracePeriodSeconds 10)) 1000 }}" WRITE
|
|
|
|
echo "Issuing failover"
|
|
# if I am the master, issue a command to failover once
|
|
run_sentinel_command failover "{{ .Values.sentinel.masterSet }}"
|
|
|
|
{{- if .Values.sentinel.redisShutdownWaitFailover }}
|
|
echo "Waiting for sentinel to complete failover for up to {{ sub .Values.sentinel.terminationGracePeriodSeconds 10 }}s"
|
|
retry_while "sentinel_failover_finished" "{{ sub .Values.sentinel.terminationGracePeriodSeconds 10 }}" 1
|
|
{{- end }}
|
|
else
|
|
exit 0
|
|
fi
|
|
|
|
{{- if or .Values.sentinel.masterService.enabled .Values.sentinel.service.createMaster }}
|
|
push-master-label.sh: |
|
|
#!/bin/bash
|
|
# https://download.redis.io/redis-stable/sentinel.conf
|
|
|
|
echo "${6/.*}" > /etc/shared/current
|
|
echo "${4/.*}" > /etc/shared/previous
|
|
{{- end }}
|
|
{{- else }}
|
|
start-master.sh: |
|
|
#!/bin/bash
|
|
|
|
[[ -f $REDIS_PASSWORD_FILE ]] && export REDIS_PASSWORD="$(< "${REDIS_PASSWORD_FILE}")"
|
|
{{- if and .Values.master.containerSecurityContext.runAsUser (eq (.Values.master.containerSecurityContext.runAsUser | int) 0) }}
|
|
useradd redis
|
|
chown -R redis {{ .Values.master.persistence.path }}
|
|
{{- end }}
|
|
if [[ -f /opt/bitnami/redis/mounted-etc/master.conf ]];then
|
|
cp /opt/bitnami/redis/mounted-etc/master.conf /opt/bitnami/redis/etc/master.conf
|
|
fi
|
|
if [[ -f /opt/bitnami/redis/mounted-etc/redis.conf ]];then
|
|
cp /opt/bitnami/redis/mounted-etc/redis.conf /opt/bitnami/redis/etc/redis.conf
|
|
fi
|
|
if [[ -f /opt/bitnami/redis/mounted-etc/users.acl ]];then
|
|
cp /opt/bitnami/redis/mounted-etc/users.acl /opt/bitnami/redis/etc/users.acl
|
|
fi
|
|
{{- if .Values.tls.enabled }}
|
|
ARGS=("--port" "0")
|
|
ARGS+=("--tls-port" "${REDIS_TLS_PORT}")
|
|
ARGS+=("--tls-cert-file" "${REDIS_TLS_CERT_FILE}")
|
|
ARGS+=("--tls-key-file" "${REDIS_TLS_KEY_FILE}")
|
|
{{- if not (empty (include "redis.tlsCACert" .)) }}
|
|
ARGS+=("--tls-ca-cert-file" "${REDIS_TLS_CA_FILE}")
|
|
{{- end }}
|
|
ARGS+=("--tls-auth-clients" "${REDIS_TLS_AUTH_CLIENTS}")
|
|
{{- if .Values.tls.dhParamsFilename }}
|
|
ARGS+=("--tls-dh-params-file" "${REDIS_TLS_DH_PARAMS_FILE}")
|
|
{{- end }}
|
|
{{- else }}
|
|
ARGS=("--port" "${REDIS_PORT}")
|
|
{{- end }}
|
|
{{- if .Values.auth.enabled }}
|
|
ARGS+=("--requirepass" "${REDIS_PASSWORD}")
|
|
ARGS+=("--masterauth" "${REDIS_PASSWORD}")
|
|
{{- else }}
|
|
ARGS+=("--protected-mode" "no")
|
|
{{- end }}
|
|
ARGS+=("--include" "/opt/bitnami/redis/etc/redis.conf")
|
|
ARGS+=("--include" "/opt/bitnami/redis/etc/master.conf")
|
|
{{- if .Values.master.extraFlags }}
|
|
{{- range .Values.master.extraFlags }}
|
|
ARGS+=({{ . | quote }})
|
|
{{- end }}
|
|
{{- end }}
|
|
{{- if .Values.master.preExecCmds }}
|
|
{{- range $command := .Values.master.preExecCmds }}
|
|
{{- $command | nindent 4 }}
|
|
{{- end }}
|
|
{{- end }}
|
|
{{- if .Values.master.command }}
|
|
exec {{ .Values.master.command }} "${ARGS[@]}"
|
|
{{- else }}
|
|
exec redis-server "${ARGS[@]}"
|
|
{{- end }}
|
|
{{- if eq .Values.architecture "replication" }}
|
|
start-replica.sh: |
|
|
#!/bin/bash
|
|
|
|
get_port() {
|
|
hostname="$1"
|
|
type="$2"
|
|
|
|
port_var=$(echo "${hostname^^}_SERVICE_PORT_$type" | sed "s/-/_/g")
|
|
port=${!port_var}
|
|
|
|
if [ -z "$port" ]; then
|
|
case $type in
|
|
"SENTINEL")
|
|
echo {{ .Values.sentinel.containerPorts.sentinel }}
|
|
;;
|
|
"REDIS")
|
|
echo {{ .Values.master.containerPorts.redis }}
|
|
;;
|
|
esac
|
|
else
|
|
echo $port
|
|
fi
|
|
}
|
|
|
|
get_full_hostname() {
|
|
hostname="$1"
|
|
|
|
{{- if .Values.useExternalDNS.enabled }}
|
|
full_hostname="${hostname}.{{- include "redis.externalDNS.suffix" . }}"
|
|
{{- else if eq .Values.sentinel.service.type "NodePort" }}
|
|
full_hostname="${hostname}.{{- include "common.names.namespace" . }}"
|
|
{{- else }}
|
|
full_hostname="${hostname}.${HEADLESS_SERVICE}"
|
|
{{- end }}
|
|
|
|
{{- if .Values.useHostnames }}
|
|
echo "${full_hostname}"
|
|
{{- else }}
|
|
retry_count=0
|
|
until getent hosts "${full_hostname}" | awk '{ print $1; exit }' | grep .; do
|
|
if [[ $retry_count -lt {{ .Values.nameResolutionThreshold }} ]]; then
|
|
sleep {{ .Values.nameResolutionTimeout }}
|
|
else
|
|
error "IP address for ${full_hostname} not found"
|
|
exit 1
|
|
fi
|
|
((retry_count++))
|
|
done
|
|
{{- end }}
|
|
}
|
|
|
|
REDISPORT=$(get_port "$HOSTNAME" "REDIS")
|
|
HEADLESS_SERVICE="{{ template "common.names.fullname" . }}-headless.{{ include "common.names.namespace" . }}.svc.{{ .Values.clusterDomain }}"
|
|
|
|
[[ -f $REDIS_PASSWORD_FILE ]] && export REDIS_PASSWORD="$(< "${REDIS_PASSWORD_FILE}")"
|
|
[[ -f $REDIS_MASTER_PASSWORD_FILE ]] && export REDIS_MASTER_PASSWORD="$(< "${REDIS_MASTER_PASSWORD_FILE}")"
|
|
{{- if and .Values.replica.containerSecurityContext.runAsUser (eq (.Values.replica.containerSecurityContext.runAsUser | int) 0) }}
|
|
useradd redis
|
|
chown -R redis {{ .Values.replica.persistence.path }}
|
|
{{- end }}
|
|
if [[ -f /opt/bitnami/redis/mounted-etc/replica.conf ]];then
|
|
cp /opt/bitnami/redis/mounted-etc/replica.conf /opt/bitnami/redis/etc/replica.conf
|
|
fi
|
|
if [[ -f /opt/bitnami/redis/mounted-etc/redis.conf ]];then
|
|
cp /opt/bitnami/redis/mounted-etc/redis.conf /opt/bitnami/redis/etc/redis.conf
|
|
fi
|
|
if [[ -f /opt/bitnami/redis/mounted-etc/users.acl ]];then
|
|
cp /opt/bitnami/redis/mounted-etc/users.acl /opt/bitnami/redis/etc/users.acl
|
|
fi
|
|
|
|
echo "" >> /opt/bitnami/redis/etc/replica.conf
|
|
echo "replica-announce-port $REDISPORT" >> /opt/bitnami/redis/etc/replica.conf
|
|
echo "replica-announce-ip $(get_full_hostname "$HOSTNAME")" >> /opt/bitnami/redis/etc/replica.conf
|
|
|
|
{{- if .Values.tls.enabled }}
|
|
ARGS=("--port" "0")
|
|
ARGS+=("--tls-port" "${REDIS_TLS_PORT}")
|
|
ARGS+=("--tls-cert-file" "${REDIS_TLS_CERT_FILE}")
|
|
ARGS+=("--tls-key-file" "${REDIS_TLS_KEY_FILE}")
|
|
{{- if not (empty (include "redis.tlsCACert" .)) }}
|
|
ARGS+=("--tls-ca-cert-file" "${REDIS_TLS_CA_FILE}")
|
|
{{- end }}
|
|
ARGS+=("--tls-auth-clients" "${REDIS_TLS_AUTH_CLIENTS}")
|
|
ARGS+=("--tls-replication" "yes")
|
|
{{- if .Values.tls.dhParamsFilename }}
|
|
ARGS+=("--tls-dh-params-file" "${REDIS_TLS_DH_PARAMS_FILE}")
|
|
{{- end }}
|
|
{{- else }}
|
|
ARGS=("--port" "${REDIS_PORT}")
|
|
{{- end }}
|
|
ARGS+=("--replicaof" "${REDIS_MASTER_HOST}" "${REDIS_MASTER_PORT_NUMBER}")
|
|
{{- if .Values.auth.enabled }}
|
|
ARGS+=("--requirepass" "${REDIS_PASSWORD}")
|
|
ARGS+=("--masterauth" "${REDIS_MASTER_PASSWORD}")
|
|
{{- else }}
|
|
ARGS+=("--protected-mode" "no")
|
|
{{- end }}
|
|
ARGS+=("--include" "/opt/bitnami/redis/etc/redis.conf")
|
|
ARGS+=("--include" "/opt/bitnami/redis/etc/replica.conf")
|
|
{{- if .Values.replica.extraFlags }}
|
|
{{- range .Values.replica.extraFlags }}
|
|
ARGS+=({{ . | quote }})
|
|
{{- end }}
|
|
{{- end }}
|
|
{{- if .Values.replica.preExecCmds }}
|
|
{{- range $command := .Values.replica.preExecCmds }}
|
|
{{- $command | nindent 4 }}
|
|
{{- end }} {{- end }}
|
|
{{- if .Values.replica.command }}
|
|
exec {{ .Values.replica.command }} "${ARGS[@]}"
|
|
{{- else }}
|
|
exec redis-server "${ARGS[@]}"
|
|
{{- end }}
|
|
{{- end }}
|
|
{{- end }}
|
|
---
|
|
{{- if or .Values.sentinel.masterService.enabled .Values.sentinel.service.createMaster }}
|
|
apiVersion: v1
|
|
kind: ConfigMap
|
|
metadata:
|
|
name: {{ printf "%s-kubectl-scripts" (include "common.names.fullname" .) }}
|
|
namespace: {{ include "common.names.namespace" . | quote }}
|
|
labels: {{- include "common.labels.standard" ( dict "customLabels" .Values.commonLabels "context" $ ) | nindent 4 }}
|
|
{{- if .Values.commonAnnotations }}
|
|
annotations: {{- include "common.tplvalues.render" ( dict "value" .Values.commonAnnotations "context" $ ) | nindent 4 }}
|
|
{{- end }}
|
|
data:
|
|
update-master-label.sh: |
|
|
#!/bin/bash
|
|
while true; do
|
|
while [ ! -f "/etc/shared/current" ]; do
|
|
sleep 1
|
|
done
|
|
echo "new master elected, updating label(s)..."
|
|
kubectl label pod --field-selector metadata.name="$(< "/etc/shared/current")" isMaster="true" --overwrite
|
|
kubectl label pod --field-selector metadata.name="$(< "/etc/shared/current")" app.kubernetes.io/role-
|
|
if [ -f /etc/shared/previous ]; then
|
|
kubectl label pod --field-selector metadata.name="$(< "/etc/shared/previous")" isMaster="false" --overwrite
|
|
fi
|
|
rm "/etc/shared/current" "/etc/shared/previous"
|
|
done
|
|
{{- end }}
|