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ATGardnerilia-medvedev-codefresh
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feat: add Argo CD version check and validation in pre-install hook (#462)
* feat: add Argo CD version check and validation in pre-install hook Enhance the pre-install hook to include a version check for Argo CD. This change introduces environment variables for Argo CD service discovery and version validation, ensuring compatibility with the required version constraint. Additionally, update the Dockerfile to install necessary dependencies for the validation process.
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‎charts/gitops-runtime/templates/hooks/pre-install/validate-values.yaml

+131-3
Original file line numberDiff line numberDiff line change
@@ -35,11 +35,139 @@ spec:
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valueFrom:
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fieldRef:
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fieldPath: metadata.namespace
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- name: VERSION
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- name: CHART_VERSION
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value: {{ .Chart.Version }}
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- name: ARGOCD_CHECK_VERSION
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value: {{ not (get .Values "argo-cd").enabled | quote }}
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- name: ARGOCD_LABELS
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value: "{{ range $k, $v := .Values.installer.argoCdVersionCheck.argoServerLabels }}{{ $k }}={{ $v }},{{ end }}"
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- name: ARGOCD_VERSION_PATH
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value: "/api/version"
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- name: REQUIRED_VERSION_CONSTRAINT
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value: ">=2.12 <3"
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command: ["sh", "-c"]
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args:
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- cf helm validate --values /job_tmp/values.yaml --namespace ${NAMESPACE} --version ${VERSION} --hook --log-level debug
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args:
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- | # shell
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# Function to find Argo CD service and export its name and port
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get_argocd_service_info() {
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local service_info
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local service_count
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# Clean labels
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CLEAN_LABELS=$(echo "$ARGOCD_LABELS" | sed 's/,$//')
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echo "Searching for Argo CD service in namespace '$NAMESPACE' with labels '$CLEAN_LABELS'"
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service_info=$(kubectl get svc -n "$NAMESPACE" -l "$CLEAN_LABELS" -o json)
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service_count=$(echo "$service_info" | jq '.items | length')
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if [ "$service_count" -eq 0 ]; then
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echo "Error: No Argo CD service found matching labels '$CLEAN_LABELS' in namespace '$NAMESPACE'."
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exit 1
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elif [ "$service_count" -gt 1 ]; then
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echo "Warning: Found multiple services matching labels '$CLEAN_LABELS'. Using the first one found."
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fi
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# Set global variables
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SERVICE_NAME=$(echo "$service_info" | jq -r '.items[0].metadata.name')
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SERVICE_PORT=$(echo "$service_info" | jq -r '.items[0].spec.ports[0].port')
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if [ -z "$SERVICE_NAME" ] || [ "$SERVICE_NAME" = "null" ] || [ -z "$SERVICE_PORT" ] || [ "$SERVICE_PORT" = "null" ]; then
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echo "Error: Could not extract service name or port from the found service."
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exit 1
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fi
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echo "Found Argo CD service '$SERVICE_NAME' on port '$SERVICE_PORT'"
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}
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# Function to get and normalize the Argo CD root path
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get_argocd_root_path() {
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local root_path
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echo "Fetching Argo CD root path from ConfigMap '$ARGOCD_CM_PARAMS_NAME' in namespace '$NAMESPACE'..."
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root_path=$(kubectl get configmap "$ARGOCD_CM_PARAMS_NAME" -n "$NAMESPACE" -o jsonpath='{.data.server\.rootpath}' 2>/dev/null || echo "")
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if [ -n "$root_path" ] && [ "$root_path" != "/" ]; then
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root_path=$(echo "$root_path" | sed 's:/*$::') # Remove trailing slash
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[ "${root_path#\/}" = "$root_path" ] && root_path="/$root_path" # Add leading slash if missing
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elif [ "$root_path" = "/" ]; then
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root_path="" # Treat as empty for URL construction
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else
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echo "Warning: 'server.rootpath' not found in ConfigMap '$ARGOCD_CM_PARAMS_NAME' or ConfigMap not found. Assuming default root path '/'. "
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root_path="" # Default to empty string
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fi
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# Set global variable
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ARGOCD_ROOT_PATH="$root_path"
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echo "Using Argo CD root path: '${ARGOCD_ROOT_PATH:-/}'"
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}
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# Function to get the Argo CD version string via API
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get_argocd_version_string() {
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# Local variables for values obtained internally
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local api_full_path
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local target_url
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local curl_opts
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local version_json
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local curl_exit_code
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# Call functions to get required info - they set global vars
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# We'll use the global vars directly after calling
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get_argocd_service_info
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get_argocd_root_path
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# Construct Target URL using the globally set variables
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api_full_path=$(echo "${ARGOCD_ROOT_PATH}${ARGOCD_VERSION_PATH}" | sed 's://:/:g')
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target_url="http://${SERVICE_NAME}.${NAMESPACE}.svc.cluster.local:${SERVICE_PORT}${api_full_path}"
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echo "Checking Argo CD version via API: $target_url"
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# Curl Execution
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curl_opts="-sS --fail --connect-timeout 10 -L -k" # Base options, follow redirects
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version_json=$(curl $curl_opts "$target_url")
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curl_exit_code=$?
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if [ $curl_exit_code -ne 0 ]; then
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echo "Error: Failed to connect to Argo CD API at $target_url (curl exit code: $curl_exit_code)."
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exit 1
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fi
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# Version Parsing - Set global variable
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VERSION_STRING=$(echo "$version_json" | jq -r '.Version')
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if [ -z "$VERSION_STRING" ] || [ "$VERSION_STRING" = "null" ]; then
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echo "Error: Could not parse '.Version' field from API response using jq."
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echo "Response JSON: $version_json"
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exit 1
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fi
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}
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# Function to validate Argo CD version and perform semver check
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validate_argocd_version() {
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# Call function to get version string (sets VERSION_STRING)
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# This function now internally calls get_argocd_service_info and get_argocd_root_path
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get_argocd_version_string
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# Clean potential 'v' prefix for semver tool
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CLEAN_VERSION_STRING=${VERSION_STRING#v}
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echo "Found Argo CD version string: $VERSION_STRING (using $CLEAN_VERSION_STRING for check)"
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echo "Required version constraint: $REQUIRED_VERSION_CONSTRAINT"
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# --- Semver Check (using semver CLI) ---
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echo "Performing semver check using 'semver-cli'..."
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if semver-cli satisfies "$CLEAN_VERSION_STRING" "$REQUIRED_VERSION_CONSTRAINT"; then
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echo "Argo CD version $VERSION_STRING satisfies range '$REQUIRED_VERSION_CONSTRAINT'."
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else
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echo "Error: Argo CD version $VERSION_STRING does not satisfy required range '$REQUIRED_VERSION_CONSTRAINT'."
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exit 1
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fi
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}
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if [ "$ARGOCD_CHECK_VERSION" = "true" ]; then
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validate_argocd_version
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fi
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# --- Helm Values Validation (cf cli) ---
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echo "Argo CD version check passed. Validating helm values using cf cli..."
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cf helm validate --values /job_tmp/values.yaml --namespace ${NAMESPACE} --version ${CHART_VERSION} --hook --log-level debug
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volumeMounts:
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- name: customized-values
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mountPath: "/job_tmp"

‎charts/gitops-runtime/values.yaml

+6
Original file line numberDiff line numberDiff line change
@@ -182,6 +182,12 @@ installer:
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tag: ""
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pullPolicy: IfNotPresent
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argoCdVersionCheck:
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# Labels to find the Argo CD API server service
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argoServerLabels:
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app.kubernetes.io/component: server
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app.kubernetes.io/part-of: argocd
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# -----------------------------------------------------------------------------------------------------------------------
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# Sealed secrets
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# -----------------------------------------------------------------------------------------------------------------------

‎installer-image/Dockerfile

+7-1
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@@ -1,3 +1,8 @@
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FROM golang:1.24.2 AS go-build
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RUN go install github.com/davidrjonas/semver-cli@latest \
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&& cp $GOPATH/bin/semver-cli /usr/local/bin/
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#bookworm-slim
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FROM debian:12.10-slim
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@@ -6,8 +11,9 @@ RUN echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selectio
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ARG CF_CLI_VERSION=v0.2.6
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ARG TARGETARCH
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RUN apt-get update && apt-get install curl -y
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RUN apt-get update && apt-get install curl jq -y
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RUN curl -L --output - https://github.com/codefresh-io/cli-v2/releases/download/${CF_CLI_VERSION}/cf-linux-${TARGETARCH}.tar.gz | tar zx && mv ./cf-linux-${TARGETARCH} /usr/local/bin/cf
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COPY --from=go-build /usr/local/bin/semver-cli /usr/local/bin/semver-cli
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COPY --from=bitnami/kubectl:1.32.3 /opt/bitnami/kubectl/bin/kubectl /usr/local/bin/
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RUN adduser --shell /bin/bash codefresh

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