scripts: Add testing of etcd in local image in release workflow.

Signed-off-by: Prasad Chandrasekaran <prasadc@vmware.com>

.github/workflows/release.yaml

@@ -9,7 +9,8 @@ jobs:
     - uses: actions/setup-go@4d34df0c2316fe8122ab82dc22947d607c0c91f9 # v4.0.0
       with:
         go-version: "1.19.7"
-    - run: |
+    - name: release
+      run: |
         set -euo pipefail
 
         git config --global user.email "github-action@etcd.io"
@@ -25,3 +26,6 @@ jobs:
         Expire-Date: 0
         EOF
         DRY_RUN=true ./scripts/release.sh --no-upload --no-docker-push --in-place 3.6.99
+    - name: test-image
+      run: |
+        VERSION=3.6.99 ./scripts/test_images.sh

scripts/test_images.sh

@@ -0,0 +1,111 @@
+#!/usr/bin/env bash
+
+# http://redsymbol.net/articles/unofficial-bash-strict-mode/
+set -euo pipefail
+IFS=$'\n\t'
+
+source ./scripts/test_lib.sh
+source ./scripts/build_lib.sh
+
+# Test version
+cmdArray=("etcd --version" "etcdctl version" "etcdutl version")
+
+function startContainer {
+    # run docker in the background
+    docker run -d --rm --name "${RUN_NAME}" "${IMAGE}" &
+
+    # wait for etcd daemon to bootstrap
+    sleep 5
+}
+
+function stopContainer {
+    docker stop "${RUN_NAME}"
+}
+
+# Can't proceed without docker
+if ! command -v docker >/dev/null; then
+    log_error "cannot find docker"
+    exit 1
+fi
+
+# You can't run darwin binaries in linux containers
+if [[ $(go env GOOS) == "darwin" ]]; then
+    echo "Please use linux machine for release builds."
+    exit 1
+fi
+
+# Docker build
+ARCH=$(go env GOARCH)
+DOCKERFILE="Dockerfile-release.${ARCH}"
+BINARYDIR=${BINARYDIR:-"bin"}
+# Pick defaults based on release workflow
+REPOSITARY=${REPOSITARY:-"gcr.io/etcd-development/etcd"}
+if [ -n "$VERSION" ]; then
+    # Expected Format: v3.6.99-amd64
+    TAG=v"${VERSION}"-"${ARCH}"
+else
+    echo "Terminating test, VERSION not supplied"
+    exit 1
+fi
+IMAGE=${IMAGE:-"${REPOSITARY}:${TAG}"}
+
+# ETCD related values
+RUN_NAME="test_etcd"
+KEY="foo"
+VALUE="bar"
+
+# Build only if image is not present
+if [[ "$(docker images -q "${IMAGE}" 2> /dev/null)" == "" ]]; then
+    echo "${TAG} not present locally, building it..."
+
+    # Build if binaries are not present
+    if [ -z "$BINARYDIR" ]; then
+        run ./scripts/build.sh
+    fi
+
+    # Build a local image from bin directory
+    if ! docker build -t "${IMAGE}" -f "${DOCKERFILE}" "${BINARYDIR}"; then
+        echo "Docker build unsuccessful. Exit code $?"
+        exit 1
+    fi
+fi
+
+startContainer
+
+# Version check
+# set IFS to include space so that docker exec command does not consider
+# arguments as part of exec name. This prevents the need to maintain
+# an additonal array.
+IFS=$'\n\t '
+for i in "${!cmdArray[@]}"; do
+    Cmd=("/usr/local/bin/""${cmdArray[$i]}")
+    # shellcheck disable=SC2068
+    Out=$(docker exec "${RUN_NAME}" ${Cmd[@]})
+    foundVersion=$(echo "$Out" | head -1 | cut -f3 -d" ")
+    if [[ "${foundVersion}" != "${VERSION}" ]]; then
+        echo "error: Invalid Version. Got $foundVersion, expected $VERSION. Error: $Out"
+        stopContainer
+        exit 1
+    fi
+done
+IFS=$'\n\t'
+
+# Put/Get check
+PUT=$(docker exec "${RUN_NAME}" /usr/local/bin/etcdctl put "${KEY}" "${VALUE}")
+if [ "${PUT}" != "OK" ]; then
+    echo "Problem with Putting in etcd"
+    stopContainer
+    exit 1
+fi
+
+GET=$(docker exec "${RUN_NAME}" /usr/local/bin/etcdctl get "$KEY" --print-value-only)
+if [ "${GET}" != "${VALUE}" ]; then
+    echo "Problem with getting foo bar in etcd. Got ${GET}"
+    stopContainer
+    exit 1
+fi
+
+stopContainer
+
+echo "Succesfully tested etcd local image ${TAG}"
+