initial commit

Change-Id: I2e2564a72b6be9af536235fc3795fd788fd9257b

.circleci/install_charts.sh

@@ -0,0 +1,126 @@
+#!/bin/bash
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+readonly CT_VERSION=latest
+readonly KIND_VERSION=v0.31.0
+readonly CLUSTER_NAME=chart-testing
+readonly REPO_ROOT="${REPO_ROOT:-$(git rev-parse --show-toplevel)}"
+readonly KEDA_VERSION=2.19.0
+
+find_latest_tag() {
+    if ! git describe --tags --abbrev=0 2>/dev/null; then
+        git rev-list --max-parents=0 --first-parent HEAD
+    fi
+}
+
+create_ct_container() {
+    echo "Starting Chart Testing container"
+    docker run --rm --interactive --detach --network host --name ct \
+        --volume "$(pwd)/.circleci/ct.yaml:/etc/ct/ct.yaml" \
+        --volume "$(pwd):/workdir" \
+        --workdir /workdir \
+        "quay.io/helmpack/chart-testing:${CT_VERSION}" \
+        cat
+}
+
+cleanup() {
+    echo "Removing ct container"
+    docker kill ct >/dev/null 2>&1 || true
+}
+
+docker_exec() {
+    docker exec --interactive --tty ct "$@"
+}
+
+create_kind_cluster() {
+    echo "Installing kind"
+    curl -sSLo kind "https://github.com/kubernetes-sigs/kind/releases/download/${KIND_VERSION}/kind-linux-amd64"
+    chmod +x kind
+    sudo mv kind /usr/local/bin/kind
+
+    echo "Creating cluster"
+    kind create cluster --name "${CLUSTER_NAME}" --wait 5m -q
+
+    echo "Copying kubeconfig to container"
+    local kubeconfig
+    kubeconfig="$(pwd)/kube-config"
+    kind get kubeconfig --name "${CLUSTER_NAME}" | tee "${kubeconfig}"
+    docker_exec mkdir -p /root/.kube
+    docker cp "${kubeconfig}" ct:/root/.kube/config
+
+    docker_exec kubectl cluster-info
+    docker_exec kubectl get nodes
+}
+
+install_local_path_provisioner() {
+    docker_exec kubectl delete storageclass standard
+    docker_exec kubectl apply -f "https://raw.githubusercontent.com/rancher/local-path-provisioner/master/deploy/local-path-storage.yaml"
+}
+
+install_keda() {
+    docker_exec kubectl apply -f "https://github.com/kedacore/keda/releases/download/v${KEDA_VERSION}/keda-${KEDA_VERSION}-core.yaml" || true
+}
+
+install_charts() {
+    docker_exec ct install --all
+    echo
+}
+
+main() {
+    pushd "${REPO_ROOT}" >/dev/null
+
+    echo "Fetching tags"
+    git fetch --tags
+
+    local latest_tag
+    latest_tag=$(find_latest_tag)
+
+    local latest_tag_rev
+    latest_tag_rev=$(git rev-parse --verify "${latest_tag}")
+    echo "${latest_tag_rev} ${latest_tag} (latest tag)"
+
+    local head_rev
+    head_rev=$(git rev-parse --verify HEAD)
+    echo "${head_rev} HEAD"
+
+    if [[ "${latest_tag_rev}" == "${head_rev}" ]]; then
+        echo "No code changes. Nothing to release."
+        exit
+    fi
+
+    echo "Identifying changed charts since tag ${latest_tag}"
+
+    local changed_charts=()
+    readarray -t changed_charts <<< "$(git diff --find-renames --name-only "${latest_tag_rev}" | grep '\.yaml$' | cut -d '/' -f 1 | sort -u)"
+
+    if [[ -n "${changed_charts[*]}" ]]; then
+        local changes_pending=no
+        for chart in "${changed_charts[@]}"; do
+            if [[ -f "${chart}/Chart.yaml" ]]; then
+                changes_pending=yes
+                break
+            fi
+        done
+
+        if [[ "${changes_pending}" == "yes" ]]; then
+            create_ct_container
+            trap cleanup EXIT
+
+            create_kind_cluster
+            install_local_path_provisioner
+            install_keda
+            install_charts
+        else
+            echo "Nothing to do. No chart changes detected."
+        fi
+    else
+        echo "Nothing to do. No chart changes detected."
+    fi
+
+    popd >/dev/null
+}
+
+main