---
# Source: argocd/charts/argo-cd/charts/redis-ha/templates/redis-ha-configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: argocd-redis-ha-configmap
  namespace: "argocd"
  labels:
    heritage: Helm
    release: argocd
    chart: redis-ha-4.34.11
    app: argocd-redis-ha
data:
  redis.conf: |
    dir "/data"
    port 6379
    rename-command FLUSHDB ""
    rename-command FLUSHALL ""
    maxmemory 0
    maxmemory-policy volatile-lru
    min-replicas-max-lag 5
    min-replicas-to-write 1
    rdbchecksum yes
    rdbcompression yes
    repl-diskless-sync yes
    save ""
  sentinel.conf: |
    dir "/data"
    port 26379
        sentinel down-after-milliseconds argocd 10000
        sentinel failover-timeout argocd 180000
        maxclients 10000
        sentinel parallel-syncs argocd 5
  init.sh: |
    echo "$(date) Start..."
    HOSTNAME="$(hostname)"
    INDEX="${HOSTNAME##*-}"
    SENTINEL_PORT=26379
    ANNOUNCE_IP=''
    MASTER=''
    MASTER_GROUP="argocd"
    QUORUM="2"
    REDIS_CONF=/data/conf/redis.conf
    REDIS_PORT=6379
    REDIS_TLS_PORT=
    SENTINEL_CONF=/data/conf/sentinel.conf
    SENTINEL_TLS_PORT=
    SERVICE=argocd-redis-ha
    SENTINEL_TLS_REPLICATION_ENABLED=false
    REDIS_TLS_REPLICATION_ENABLED=false

    set -eu
    sentinel_get_master() {
    set +e
        if [ "$SENTINEL_PORT" -eq 0 ]; then
            redis-cli -h "${SERVICE}" -p "${SENTINEL_TLS_PORT}"  --tls --cacert /tls-certs/ca.crt  --cert /tls-certs/redis.crt --key /tls-certs/redis.key sentinel get-master-addr-by-name "${MASTER_GROUP}" |\
            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*$)|(^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?s*$))'
        else
            redis-cli -h "${SERVICE}" -p "${SENTINEL_PORT}"  sentinel get-master-addr-by-name "${MASTER_GROUP}" |\
            grep -E '((^\s*((([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5]))\s*$)|(^\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*$))'
        fi
    set -e
    }

    sentinel_get_master_retry() {
        master=''
        retry=${1}
        sleep=3
        for i in $(seq 1 "${retry}"); do
            master=$(sentinel_get_master)
            if [ -n "${master}" ]; then
                break
            fi
            sleep $((sleep + i))
        done
        echo "${master}"
    }

    identify_master() {
        echo "Identifying redis master (get-master-addr-by-name).."
        echo "  using sentinel (argocd-redis-ha), sentinel group name (argocd)"
        MASTER="$(sentinel_get_master_retry 3)"
        if [ -n "${MASTER}" ]; then
            echo "  $(date) Found redis master (${MASTER})"
        else
            echo "  $(date) Did not find redis master (${MASTER})"
        fi
    }

    sentinel_update() {
        echo "Updating sentinel config.."
        echo "  evaluating sentinel id (\${SENTINEL_ID_${INDEX}})"
        eval MY_SENTINEL_ID="\$SENTINEL_ID_${INDEX}"
        echo "  sentinel id (${MY_SENTINEL_ID}), sentinel grp (${MASTER_GROUP}), quorum (${QUORUM})"
        sed -i "1s/^/sentinel myid ${MY_SENTINEL_ID}\\n/" "${SENTINEL_CONF}"
        if [ "$SENTINEL_TLS_REPLICATION_ENABLED" = true ]; then
            echo "  redis master (${1}:${REDIS_TLS_PORT})"
            sed -i "2s/^/sentinel monitor ${MASTER_GROUP} ${1} ${REDIS_TLS_PORT} ${QUORUM} \\n/" "${SENTINEL_CONF}"
        else
            echo "  redis master (${1}:${REDIS_PORT})"
            sed -i "2s/^/sentinel monitor ${MASTER_GROUP} ${1} ${REDIS_PORT} ${QUORUM} \\n/" "${SENTINEL_CONF}"
        fi
        echo "sentinel announce-ip ${ANNOUNCE_IP}" >> ${SENTINEL_CONF}
        if [ "$SENTINEL_PORT" -eq 0 ]; then
            echo "  announce (${ANNOUNCE_IP}:${SENTINEL_TLS_PORT})"
            echo "sentinel announce-port ${SENTINEL_TLS_PORT}" >> ${SENTINEL_CONF}
        else
            echo "  announce (${ANNOUNCE_IP}:${SENTINEL_PORT})"
            echo "sentinel announce-port ${SENTINEL_PORT}" >> ${SENTINEL_CONF}
        fi
    }

    redis_update() {
        echo "Updating redis config.."
        if [ "$REDIS_TLS_REPLICATION_ENABLED" = true ]; then
            echo "  we are slave of redis master (${1}:${REDIS_TLS_PORT})"
            echo "slaveof ${1} ${REDIS_TLS_PORT}" >> "${REDIS_CONF}"
            echo "slave-announce-port ${REDIS_TLS_PORT}" >> ${REDIS_CONF}
        else
            echo "  we are slave of redis master (${1}:${REDIS_PORT})"
            echo "slaveof ${1} ${REDIS_PORT}" >> "${REDIS_CONF}"
            echo "slave-announce-port ${REDIS_PORT}" >> ${REDIS_CONF}
        fi
        echo "slave-announce-ip ${ANNOUNCE_IP}" >> ${REDIS_CONF}
    }

    copy_config() {
        echo "Copying default redis config.."
        echo "  to '${REDIS_CONF}'"
        cp /readonly-config/redis.conf "${REDIS_CONF}"
        echo "Copying default sentinel config.."
        echo "  to '${SENTINEL_CONF}'"
        cp /readonly-config/sentinel.conf "${SENTINEL_CONF}"
    }

    setup_defaults() {
        echo "Setting up defaults.."
        echo "  using statefulset index (${INDEX})"
        if [ "${INDEX}" = "0" ]; then
            echo "Setting this pod as master for redis and sentinel.."
            echo "  using announce (${ANNOUNCE_IP})"
            redis_update "${ANNOUNCE_IP}"
            sentinel_update "${ANNOUNCE_IP}"
            echo "  make sure ${ANNOUNCE_IP} is not a slave (slaveof no one)"
            sed -i "s/^.*slaveof.*//" "${REDIS_CONF}"
        else
            echo "Getting redis master ip.."
            echo "  blindly assuming (${SERVICE}-announce-0) or (${SERVICE}-server-0) are master"
            DEFAULT_MASTER="$(getent_hosts 0 | awk '{ print $1 }')"
            if [ -z "${DEFAULT_MASTER}" ]; then
                echo "Error: Unable to resolve redis master (getent hosts)."
                exit 1
            fi
            echo "  identified redis (may be redis master) ip (${DEFAULT_MASTER})"
            echo "Setting default slave config for redis and sentinel.."
            echo "  using master ip (${DEFAULT_MASTER})"
            redis_update "${DEFAULT_MASTER}"
            sentinel_update "${DEFAULT_MASTER}"
        fi
    }

    redis_ping() {
    set +e
        if [ "$REDIS_PORT" -eq 0 ]; then
            redis-cli -h "${MASTER}" -p "${REDIS_TLS_PORT}" --tls --cacert /tls-certs/ca.crt  --cert /tls-certs/redis.crt --key /tls-certs/redis.key ping
        else
            redis-cli -h "${MASTER}" -p "${REDIS_PORT}" ping
        fi
    set -e
    }

    redis_ping_retry() {
        ping=''
        retry=${1}
        sleep=3
        for i in $(seq 1 "${retry}"); do
            if [ "$(redis_ping)" = "PONG" ]; then
               ping='PONG'
               break
            fi
            sleep $((sleep + i))
            MASTER=$(sentinel_get_master)
        done
        echo "${ping}"
    }

    find_master() {
        echo "Verifying redis master.."
        if [ "$REDIS_PORT" -eq 0 ]; then
            echo "  ping (${MASTER}:${REDIS_TLS_PORT})"
        else
            echo "  ping (${MASTER}:${REDIS_PORT})"
        fi
        if [ "$(redis_ping_retry 3)" != "PONG" ]; then
            echo "  $(date) Can't ping redis master (${MASTER})"
            echo "Attempting to force failover (sentinel failover).."

            if [ "$SENTINEL_PORT" -eq 0 ]; then
                echo "  on sentinel (${SERVICE}:${SENTINEL_TLS_PORT}), sentinel grp (${MASTER_GROUP})"
                if redis-cli -h "${SERVICE}" -p "${SENTINEL_TLS_PORT}"  --tls --cacert /tls-certs/ca.crt  --cert /tls-certs/redis.crt --key /tls-certs/redis.key sentinel failover "${MASTER_GROUP}" | grep -q 'NOGOODSLAVE' ; then
                    echo "  $(date) Failover returned with 'NOGOODSLAVE'"
                    echo "Setting defaults for this pod.."
                    setup_defaults
                    return 0
                fi
            else
                echo "  on sentinel (${SERVICE}:${SENTINEL_PORT}), sentinel grp (${MASTER_GROUP})"
                if redis-cli -h "${SERVICE}" -p "${SENTINEL_PORT}"  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})"
    }

    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 [ "${AUTH:-}" ]; then
        echo "Setting redis auth values.."
        ESCAPED_AUTH=$(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 "$(date) Ready..."
  fix-split-brain.sh: |
    HOSTNAME="$(hostname)"
    INDEX="${HOSTNAME##*-}"
    SENTINEL_PORT=26379
    ANNOUNCE_IP=''
    MASTER=''
    MASTER_GROUP="argocd"
    QUORUM="2"
    REDIS_CONF=/data/conf/redis.conf
    REDIS_PORT=6379
    REDIS_TLS_PORT=
    SENTINEL_CONF=/data/conf/sentinel.conf
    SENTINEL_TLS_PORT=
    SERVICE=argocd-redis-ha
    SENTINEL_TLS_REPLICATION_ENABLED=false
    REDIS_TLS_REPLICATION_ENABLED=false

    ROLE=''
    REDIS_MASTER=''

    set -eu
    sentinel_get_master() {
    set +e
        if [ "$SENTINEL_PORT" -eq 0 ]; then
            redis-cli -h "${SERVICE}" -p "${SENTINEL_TLS_PORT}"  --tls --cacert /tls-certs/ca.crt  --cert /tls-certs/redis.crt --key /tls-certs/redis.key sentinel get-master-addr-by-name "${MASTER_GROUP}" |\
            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*$)|(^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?s*$))'
        else
            redis-cli -h "${SERVICE}" -p "${SENTINEL_PORT}"  sentinel get-master-addr-by-name "${MASTER_GROUP}" |\
            grep -E '((^\s*((([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5]))\s*$)|(^\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*$))'
        fi
    set -e
    }

    sentinel_get_master_retry() {
        master=''
        retry=${1}
        sleep=3
        for i in $(seq 1 "${retry}"); do
            master=$(sentinel_get_master)
            if [ -n "${master}" ]; then
                break
            fi
            sleep $((sleep + i))
        done
        echo "${master}"
    }

    identify_master() {
        echo "Identifying redis master (get-master-addr-by-name).."
        echo "  using sentinel (argocd-redis-ha), sentinel group name (argocd)"
        MASTER="$(sentinel_get_master_retry 3)"
        if [ -n "${MASTER}" ]; then
            echo "  $(date) Found redis master (${MASTER})"
        else
            echo "  $(date) Did not find redis master (${MASTER})"
        fi
    }

    sentinel_update() {
        echo "Updating sentinel config.."
        echo "  evaluating sentinel id (\${SENTINEL_ID_${INDEX}})"
        eval MY_SENTINEL_ID="\$SENTINEL_ID_${INDEX}"
        echo "  sentinel id (${MY_SENTINEL_ID}), sentinel grp (${MASTER_GROUP}), quorum (${QUORUM})"
        sed -i "1s/^/sentinel myid ${MY_SENTINEL_ID}\\n/" "${SENTINEL_CONF}"
        if [ "$SENTINEL_TLS_REPLICATION_ENABLED" = true ]; then
            echo "  redis master (${1}:${REDIS_TLS_PORT})"
            sed -i "2s/^/sentinel monitor ${MASTER_GROUP} ${1} ${REDIS_TLS_PORT} ${QUORUM} \\n/" "${SENTINEL_CONF}"
        else
            echo "  redis master (${1}:${REDIS_PORT})"
            sed -i "2s/^/sentinel monitor ${MASTER_GROUP} ${1} ${REDIS_PORT} ${QUORUM} \\n/" "${SENTINEL_CONF}"
        fi
        echo "sentinel announce-ip ${ANNOUNCE_IP}" >> ${SENTINEL_CONF}
        if [ "$SENTINEL_PORT" -eq 0 ]; then
            echo "  announce (${ANNOUNCE_IP}:${SENTINEL_TLS_PORT})"
            echo "sentinel announce-port ${SENTINEL_TLS_PORT}" >> ${SENTINEL_CONF}
        else
            echo "  announce (${ANNOUNCE_IP}:${SENTINEL_PORT})"
            echo "sentinel announce-port ${SENTINEL_PORT}" >> ${SENTINEL_CONF}
        fi
    }

    redis_update() {
        echo "Updating redis config.."
        if [ "$REDIS_TLS_REPLICATION_ENABLED" = true ]; then
            echo "  we are slave of redis master (${1}:${REDIS_TLS_PORT})"
            echo "slaveof ${1} ${REDIS_TLS_PORT}" >> "${REDIS_CONF}"
            echo "slave-announce-port ${REDIS_TLS_PORT}" >> ${REDIS_CONF}
        else
            echo "  we are slave of redis master (${1}:${REDIS_PORT})"
            echo "slaveof ${1} ${REDIS_PORT}" >> "${REDIS_CONF}"
            echo "slave-announce-port ${REDIS_PORT}" >> ${REDIS_CONF}
        fi
        echo "slave-announce-ip ${ANNOUNCE_IP}" >> ${REDIS_CONF}
    }

    copy_config() {
        echo "Copying default redis config.."
        echo "  to '${REDIS_CONF}'"
        cp /readonly-config/redis.conf "${REDIS_CONF}"
        echo "Copying default sentinel config.."
        echo "  to '${SENTINEL_CONF}'"
        cp /readonly-config/sentinel.conf "${SENTINEL_CONF}"
    }

    setup_defaults() {
        echo "Setting up defaults.."
        echo "  using statefulset index (${INDEX})"
        if [ "${INDEX}" = "0" ]; then
            echo "Setting this pod as master for redis and sentinel.."
            echo "  using announce (${ANNOUNCE_IP})"
            redis_update "${ANNOUNCE_IP}"
            sentinel_update "${ANNOUNCE_IP}"
            echo "  make sure ${ANNOUNCE_IP} is not a slave (slaveof no one)"
            sed -i "s/^.*slaveof.*//" "${REDIS_CONF}"
        else
            echo "Getting redis master ip.."
            echo "  blindly assuming (${SERVICE}-announce-0) or (${SERVICE}-server-0) are master"
            DEFAULT_MASTER="$(getent_hosts 0 | awk '{ print $1 }')"
            if [ -z "${DEFAULT_MASTER}" ]; then
                echo "Error: Unable to resolve redis master (getent hosts)."
                exit 1
            fi
            echo "  identified redis (may be redis master) ip (${DEFAULT_MASTER})"
            echo "Setting default slave config for redis and sentinel.."
            echo "  using master ip (${DEFAULT_MASTER})"
            redis_update "${DEFAULT_MASTER}"
            sentinel_update "${DEFAULT_MASTER}"
        fi
    }

    redis_ping() {
    set +e
        if [ "$REDIS_PORT" -eq 0 ]; then
            redis-cli -h "${MASTER}" -p "${REDIS_TLS_PORT}" --tls --cacert /tls-certs/ca.crt  --cert /tls-certs/redis.crt --key /tls-certs/redis.key ping
        else
            redis-cli -h "${MASTER}" -p "${REDIS_PORT}" ping
        fi
    set -e
    }

    redis_ping_retry() {
        ping=''
        retry=${1}
        sleep=3
        for i in $(seq 1 "${retry}"); do
            if [ "$(redis_ping)" = "PONG" ]; then
               ping='PONG'
               break
            fi
            sleep $((sleep + i))
            MASTER=$(sentinel_get_master)
        done
        echo "${ping}"
    }

    find_master() {
        echo "Verifying redis master.."
        if [ "$REDIS_PORT" -eq 0 ]; then
            echo "  ping (${MASTER}:${REDIS_TLS_PORT})"
        else
            echo "  ping (${MASTER}:${REDIS_PORT})"
        fi
        if [ "$(redis_ping_retry 3)" != "PONG" ]; then
            echo "  $(date) Can't ping redis master (${MASTER})"
            echo "Attempting to force failover (sentinel failover).."

            if [ "$SENTINEL_PORT" -eq 0 ]; then
                echo "  on sentinel (${SERVICE}:${SENTINEL_TLS_PORT}), sentinel grp (${MASTER_GROUP})"
                if redis-cli -h "${SERVICE}" -p "${SENTINEL_TLS_PORT}"  --tls --cacert /tls-certs/ca.crt  --cert /tls-certs/redis.crt --key /tls-certs/redis.key sentinel failover "${MASTER_GROUP}" | grep -q 'NOGOODSLAVE' ; then
                    echo "  $(date) Failover returned with 'NOGOODSLAVE'"
                    echo "Setting defaults for this pod.."
                    setup_defaults
                    return 0
                fi
            else
                echo "  on sentinel (${SERVICE}:${SENTINEL_PORT}), sentinel grp (${MASTER_GROUP})"
                if redis-cli -h "${SERVICE}" -p "${SENTINEL_PORT}"  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})"
    }

    redis_role() {
    set +e
        if [ "$REDIS_PORT" -eq 0 ]; then
            ROLE=$(redis-cli  -p "${REDIS_TLS_PORT}" --tls --cacert /tls-certs/ca.crt  --cert /tls-certs/redis.crt --key /tls-certs/redis.key info | grep role | sed 's/role://' | sed 's/\r//')
        else
            ROLE=$(redis-cli  -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  -p "${REDIS_TLS_PORT}" --tls --cacert /tls-certs/ca.crt  --cert /tls-certs/redis.crt --key /tls-certs/redis.key info | grep master_host | sed 's/master_host://' | sed 's/\r//')
        else
            REDIS_MASTER=$(redis-cli  -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 [ "$REDIS_PORT" -eq 0 ]; then
            echo "shutdown" | redis-cli  -p "${REDIS_TLS_PORT}" --tls --cacert /tls-certs/ca.crt  --cert /tls-certs/redis.crt --key /tls-certs/redis.key
        else
            echo "shutdown" | redis-cli  -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 60

        # where is redis master
        identify_master

        if [ "$MASTER" = "$ANNOUNCE_IP" ]; then
            redis_role
            if [ "$ROLE" != "master" ]; then
                echo "waiting for redis to become master"
                sleep 10
                identify_master
                redis_role
                echo "Redis role is $ROLE, expected role is master. No need to reinitialize."
                if [ "$ROLE" != "master" ]; then
                    echo "Redis role is $ROLE, expected role is master, reinitializing"
                    reinit
                fi
            fi
        elif [ "${MASTER}" ]; then
            identify_redis_master
            if [ "$REDIS_MASTER" != "$MASTER" ]; then
                echo "Redis master and local master are not the same. waiting."
                sleep 10
                identify_master
                identify_redis_master
                echo "Redis master is ${MASTER}, expected master is ${REDIS_MASTER}. No need to reinitialize."
                if [ "${REDIS_MASTER}" != "${MASTER}" ]; then
                    echo "Redis master is ${MASTER}, expected master is ${REDIS_MASTER}, reinitializing"
                    reinit
                fi
            fi
        fi
    done
  haproxy.cfg: |
    defaults REDIS
      mode tcp
      timeout connect 4s
      timeout server 330s
      timeout client 330s
      timeout check 2s

    listen health_check_http_url
      bind [::]:8888  v4v6
      mode http
      monitor-uri /healthz
      option      dontlognull
    # Check Sentinel and whether they are nominated master
    backend check_if_redis_is_master_0
      mode tcp
      option tcp-check
      tcp-check connect
      tcp-check send PING\r\n
      tcp-check expect string +PONG
      tcp-check send SENTINEL\ get-master-addr-by-name\ argocd\r\n
      tcp-check expect string REPLACE_ANNOUNCE0
      tcp-check send QUIT\r\n
      server R0 argocd-redis-ha-announce-0:26379 check inter 1s
      server R1 argocd-redis-ha-announce-1:26379 check inter 1s
      server R2 argocd-redis-ha-announce-2:26379 check inter 1s
    # Check Sentinel and whether they are nominated master
    backend check_if_redis_is_master_1
      mode tcp
      option tcp-check
      tcp-check connect
      tcp-check send PING\r\n
      tcp-check expect string +PONG
      tcp-check send SENTINEL\ get-master-addr-by-name\ argocd\r\n
      tcp-check expect string REPLACE_ANNOUNCE1
      tcp-check send QUIT\r\n
      server R0 argocd-redis-ha-announce-0:26379 check inter 1s
      server R1 argocd-redis-ha-announce-1:26379 check inter 1s
      server R2 argocd-redis-ha-announce-2:26379 check inter 1s
    # Check Sentinel and whether they are nominated master
    backend check_if_redis_is_master_2
      mode tcp
      option tcp-check
      tcp-check connect
      tcp-check send PING\r\n
      tcp-check expect string +PONG
      tcp-check send SENTINEL\ get-master-addr-by-name\ argocd\r\n
      tcp-check expect string REPLACE_ANNOUNCE2
      tcp-check send QUIT\r\n
      server R0 argocd-redis-ha-announce-0:26379 check inter 1s
      server R1 argocd-redis-ha-announce-1:26379 check inter 1s
      server R2 argocd-redis-ha-announce-2:26379 check inter 1s

    # decide redis backend to use
    #master
    frontend ft_redis_master
      bind [::]:6379 v4v6
      use_backend bk_redis_master
    # Check all redis servers to see if they think they are master
    backend bk_redis_master
      mode tcp
      option tcp-check
      tcp-check connect
      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
      use-server R0 if { srv_is_up(R0) } { nbsrv(check_if_redis_is_master_0) ge 2 }
      server R0 argocd-redis-ha-announce-0:6379 check inter 1s fall 1 rise 1
      use-server R1 if { srv_is_up(R1) } { nbsrv(check_if_redis_is_master_1) ge 2 }
      server R1 argocd-redis-ha-announce-1:6379 check inter 1s fall 1 rise 1
      use-server R2 if { srv_is_up(R2) } { nbsrv(check_if_redis_is_master_2) ge 2 }
      server R2 argocd-redis-ha-announce-2:6379 check inter 1s fall 1 rise 1
    frontend stats
      mode http
      bind [::]:9101 v4v6
      http-request use-service prometheus-exporter if { path /metrics }
      stats enable
      stats uri /stats
      stats refresh 10s
  haproxy_init.sh: |
    HAPROXY_CONF=/data/haproxy.cfg
    cp /readonly/haproxy.cfg "$HAPROXY_CONF"
    for loop in $(seq 1 10); do
      getent hosts argocd-redis-ha-announce-0 && break
      echo "Waiting for service argocd-redis-ha-announce-0 to be ready ($loop) ..." && sleep 1
    done
    ANNOUNCE_IP0=$(getent hosts "argocd-redis-ha-announce-0" | awk '{ print $1 }')
    if [ -z "$ANNOUNCE_IP0" ]; then
      echo "Could not resolve the announce ip for argocd-redis-ha-announce-0"
      exit 1
    fi
    sed -i "s/REPLACE_ANNOUNCE0/$ANNOUNCE_IP0/" "$HAPROXY_CONF"
    for loop in $(seq 1 10); do
      getent hosts argocd-redis-ha-announce-1 && break
      echo "Waiting for service argocd-redis-ha-announce-1 to be ready ($loop) ..." && sleep 1
    done
    ANNOUNCE_IP1=$(getent hosts "argocd-redis-ha-announce-1" | awk '{ print $1 }')
    if [ -z "$ANNOUNCE_IP1" ]; then
      echo "Could not resolve the announce ip for argocd-redis-ha-announce-1"
      exit 1
    fi
    sed -i "s/REPLACE_ANNOUNCE1/$ANNOUNCE_IP1/" "$HAPROXY_CONF"
    for loop in $(seq 1 10); do
      getent hosts argocd-redis-ha-announce-2 && break
      echo "Waiting for service argocd-redis-ha-announce-2 to be ready ($loop) ..." && sleep 1
    done
    ANNOUNCE_IP2=$(getent hosts "argocd-redis-ha-announce-2" | awk '{ print $1 }')
    if [ -z "$ANNOUNCE_IP2" ]; then
      echo "Could not resolve the announce ip for argocd-redis-ha-announce-2"
      exit 1
    fi
    sed -i "s/REPLACE_ANNOUNCE2/$ANNOUNCE_IP2/" "$HAPROXY_CONF"
  trigger-failover-if-master.sh: |
    get_redis_role() {
      is_master=$(
        redis-cli \
          -h localhost \
          -p 6379 \
          info | grep -c 'role:master' || true
      )
    }
    get_redis_role
    if [[ "$is_master" -eq 1 ]]; then
      echo "This node is currently master, we trigger a failover."
      response=$(
        redis-cli \
          -h localhost \
          -p 26379 \
          SENTINEL failover argocd
      )
      if [[ "$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