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Add support for extended install/upgrade timeouts and handle failed/p…
…ending states (#27) * Consistently use double brackets for tests * Consistently wrap variables in curly braces * Eliminate unnecessary cut/cat/sed that can be done in pure bash * Handle pending-upgrade chart status * Add timeout support; fix whitespace * Update build image toolchain Signed-off-by: Brad Davidson <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,128 +1,141 @@ | ||
| #!/bin/bash | ||
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| helm_update() { | ||
| if [ "$HELM" == "helm_v3" ]; then | ||
| LINE="$($HELM ls -f "^$NAME\$" --namespace $TARGET_NAMESPACE --output json | jq -r "$JQ_CMD" | tr '[:upper:]' '[:lower:]')" | ||
| if [[ "${HELM}" == "helm_v3" ]]; then | ||
| LINE="$(${HELM} ls --all -f "^${NAME}\$" --namespace ${TARGET_NAMESPACE} --output json | jq -r "${JQ_CMD}" | tr '[:upper:]' '[:lower:]')" | ||
| else | ||
| LINE="$($HELM ls --all "^$NAME\$" --output json | jq -r "$JQ_CMD" | tr '[:upper:]' '[:lower:]')" | ||
| LINE="$(${HELM} ls --all "^${NAME}\$" --output json | jq -r "${JQ_CMD}" | tr '[:upper:]' '[:lower:]')" | ||
| fi | ||
| INSTALLED_VERSION=$(echo $LINE | cut -f1 -d,) | ||
| STATUS=$(echo $LINE | cut -f2 -d,) | ||
| IFS=, read -r INSTALLED_VERSION STATUS _ <<<${LINE} | ||
| VALUES="" | ||
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| for VALUES_FILE in /config/*.yaml; do | ||
| VALUES="$VALUES --values $VALUES_FILE" | ||
| VALUES="${VALUES} --values ${VALUES_FILE}" | ||
| done | ||
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||
| if [ "$1" = "delete" ]; then | ||
| if [ -z "$INSTALLED_VERSION" ]; then | ||
| # Uninstall or delete chart if asked to delete and the chart was found; otherwise no-op | ||
| if [[ "$1" = "delete" ]]; then | ||
| if [[ -z "${INSTALLED_VERSION}" ]]; then | ||
| exit | ||
| fi | ||
| if [ "$HELM" == "helm_v3" ]; then | ||
| $HELM uninstall $NAME --namespace $TARGET_NAMESPACE|| true | ||
| if [[ "${HELM}" == "helm_v3" ]]; then | ||
| ${HELM} uninstall ${NAME} --namespace ${TARGET_NAMESPACE} || true | ||
| else | ||
| $HELM delete $NAME || true | ||
| $HELM "$@" --purge $NAME | ||
| ${HELM} delete ${NAME} || true | ||
| ${HELM} "$@" --purge ${NAME} | ||
| fi | ||
| exit | ||
| fi | ||
|
|
||
| if [ -z "$INSTALLED_VERSION" ] && [ -z "$STATUS" ]; then | ||
| $HELM "$@" $NAME_ARG $NAME $CHART $VALUES | ||
| # No current version and status, safe to install | ||
| if [[ "${INSTALLED_VERSION}" =~ ^(|null)$ ]] && [[ "${STATUS}" =~ ^(|null)$ ]]; then | ||
| ${HELM} "$@" ${NAME_ARG} ${NAME} ${CHART} ${TIMEOUT_ARG} ${VALUES} | ||
| exit | ||
| fi | ||
|
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||
| # Upgrade only if the status is already deployed | ||
| if [ "$STATUS" = "deployed" ]; then | ||
| echo Already installed $NAME, upgrading | ||
| # Upgrade only if the status is already deployed, or if a previous upgrade was interrupted | ||
| if [[ "${STATUS}" =~ ^(deployed|pending-upgrade)$ ]]; then | ||
| echo Already installed ${NAME}, upgrading | ||
| shift 1 | ||
| $HELM upgrade "$@" $NAME $CHART $VALUES | ||
| ${HELM} upgrade "$@" ${NAME} ${CHART} ${TIMEOUT_ARG} ${VALUES} | ||
| exit | ||
| fi | ||
|
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||
| if [ "$STATUS" = "failed" ] || [ "$STATUS" = "deleted" ]; then | ||
| if [ "$HELM" == "helm_v3" ]; then | ||
| $HELM uninstall $NAME --namespace $TARGET_NAMESPACE | ||
| # The chart is in a bad state; try uninstalling it first | ||
| if [[ "${STATUS}" =~ ^(deleted|failed|null|unknown)$ ]]; then | ||
| if [[ "${HELM}" == "helm_v3" ]]; then | ||
| ${HELM} uninstall ${NAME} --namespace ${TARGET_NAMESPACE} | ||
| else | ||
| $HELM "$@" --purge $NAME | ||
| ${HELM} "$@" --purge ${NAME} | ||
| fi | ||
| echo Deleted | ||
| $HELM "$@" $NAME_ARG $NAME $CHART $VALUES | ||
| # Try installing now that we've uninstalled | ||
| ${HELM} "$@" ${NAME_ARG} ${NAME} ${CHART} ${TIMEOUT_ARG} ${VALUES} | ||
| exit | ||
| fi | ||
|
|
||
| $HELM "$@" $NAME_ARG $NAME $CHART $VALUES | ||
| # No special status handling necessary, do whatever we were asked to do | ||
| ${HELM} "$@" ${NAME_ARG} ${NAME} ${CHART} ${TIMEOUT_ARG} ${VALUES} | ||
| } | ||
|
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||
| helm_repo_init() { | ||
| # if the chart is url skip repo update | ||
| if grep -q -e "https\?://" <<< "$CHART"; then | ||
| if grep -q -e "https\?://" <<< "${CHART}"; then | ||
| echo "chart path is a url, skipping repo update" | ||
| $HELM repo remove stable || true | ||
| ${HELM} repo remove stable || true | ||
| return | ||
| fi | ||
|
|
||
| if [ "$HELM" == "helm_v3" ]; then | ||
| if [[ $CHART == stable/* ]]; then | ||
| $HELM repo add stable $STABLE_REPO_URL | ||
| $HELM repo update | ||
| if [[ "${HELM}" == "helm_v3" ]]; then | ||
| if [[ ${CHART} == stable/* ]]; then | ||
| ${HELM} repo add stable ${STABLE_REPO_URL} | ||
| ${HELM} repo update | ||
| fi | ||
| else | ||
| $HELM repo update --strict || $HELM repo remove stable | ||
| ${HELM} repo update --strict || ${HELM} repo remove stable | ||
| fi | ||
|
|
||
| if [ -n "$REPO" ]; then | ||
| $HELM repo add ${NAME%%/*} $REPO | ||
| $HELM repo update | ||
| if [[ -n "${REPO}" ]]; then | ||
| ${HELM} repo add ${NAME%%/*} ${REPO} | ||
| ${HELM} repo update | ||
| fi | ||
| } | ||
|
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||
| helm_content_decode() { | ||
| set -e | ||
| ENC_CHART_PATH="/chart/${NAME}.tgz.base64" | ||
| CHART_PATH="/${NAME}.tgz" | ||
| if [ ! -f "${ENC_CHART_PATH}" ]; then | ||
| if [[ ! -f "${ENC_CHART_PATH}" ]]; then | ||
| return | ||
| fi | ||
| cat ${ENC_CHART_PATH} | base64 -d > ${CHART_PATH} | ||
| base64 -d ${ENC_CHART_PATH} > ${CHART_PATH} | ||
| CHART=${CHART_PATH} | ||
| set +e | ||
| } | ||
|
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||
| HELM="helm_v3" | ||
| NAME_ARG="" | ||
| TIMEOUT_ARG="" | ||
| JQ_CMD='"\(.[0].app_version),\(.[0].status)"' | ||
|
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||
| set -e -v | ||
| CHART=$(sed -e "s/%{KUBERNETES_API}%/${KUBERNETES_SERVICE_HOST}:${KUBERNETES_SERVICE_PORT}/g" <<< "${CHART}") | ||
| CHART="${CHART//%\{KUBERNETES_API\}%/${KUBERNETES_SERVICE_HOST}:${KUBERNETES_SERVICE_PORT}}" | ||
| set +v -x | ||
|
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| cp /var/run/secrets/kubernetes.io/serviceaccount/ca.crt /usr/local/share/ca-certificates/ | ||
| update-ca-certificates | ||
|
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||
| if [ "$BOOTSTRAP" != "true" ]; then | ||
| tiller --listen=127.0.0.1:44134 --storage=secret & | ||
| export HELM_HOST=127.0.0.1:44134 | ||
| if [[ "${BOOTSTRAP}" != "true" ]]; then | ||
| tiller --listen=127.0.0.1:44134 --storage=secret & | ||
| export HELM_HOST=127.0.0.1:44134 | ||
|
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| helm_v2 init --skip-refresh --client-only --stable-repo-url $STABLE_REPO_URL | ||
| EXIST=$(helm_v2 ls --all "^$NAME\$" --output json | jq -r '.Releases | length') | ||
| helm_v2 init --skip-refresh --client-only --stable-repo-url ${STABLE_REPO_URL} | ||
| V2_CHART_EXISTS=$(helm_v2 ls --all "^${NAME}\$" --output json | jq -r '.Releases | length') | ||
| fi | ||
|
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||
| if [ "$EXIST" == "1" ] || [ "$HELM_VERSION" == "v2" ]; then | ||
| if [ "$BOOTSTRAP" == "true" ]; then | ||
| echo "Error: bootstrap flag can't be set with helm version 2 charts, please remove the bootstrap flag and update the chart" | ||
| exit 1 | ||
| fi | ||
| if [[ "${V2_CHART_EXISTS}" == "1" ]] || [[ "${HELM_VERSION}" == "v2" ]]; then | ||
| if [[ "${BOOTSTRAP}" == "true" ]]; then | ||
| echo "Error: bootstrap flag can't be set with helm version 2 charts, please remove the bootstrap flag and update the chart" | ||
| exit 1 | ||
| fi | ||
| HELM="helm_v2" | ||
| NAME_ARG="--name" | ||
| JQ_CMD='"\(.Releases[0].AppVersion),\(.Releases[0].Status)"' | ||
| fi | ||
|
|
||
| if [[ -n "${TIMEOUT}" ]]; then | ||
| if [[ "${HELM}" == "helm_v3" ]]; then | ||
| TIMEOUT_ARG="--timeout ${TIMEOUT}" | ||
| else | ||
| echo "Warning: timeout flag can't be set with version 2 charts, using default timeout" | ||
| fi | ||
| fi | ||
|
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||
| shopt -s nullglob | ||
|
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| helm_content_decode | ||
| if [ "$1" != "delete" ]; then | ||
| helm_repo_init | ||
| if [[ "$1" != "delete" ]]; then | ||
| helm_repo_init | ||
| fi | ||
| helm_update "$@" | ||
|
|
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