ci(workflow): using the alpine

.github/workflows/docker.yml

@@ -32,11 +32,19 @@ jobs:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-      - name: Declare version variables
-        shell: bash
+      - name: Get short commit hash and determine branch name
+        id: set-env-vars
         run: |
-          echo "SHORT_COMMIT_HASH=$(git rev-parse --short "$GITHUB_SHA")" >> "$GITHUB_ENV"
-          echo "BRANCH_NAME=$(echo ${GITHUB_REF#refs/heads/})" >> "$GITHUB_ENV"
+          # Get short commit hash
+          echo "Branch: $(git rev-parse --short HEAD)"
+          echo "SHORT_COMMIT_HASH=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
+
+          # Determine branch name
+          if [ "${{ github.event_name }}" == "pull_request" ]; then
+            echo "BRANCH_NAME=${{ github.head_ref }}" >> $GITHUB_ENV  # Source branch of the PR
+          else
+            echo "BRANCH_NAME=${{ github.ref_name }}" >> $GITHUB_ENV  # Actual branch name for push events
+          fi
       - name: Echo step
         run: |
           echo "Branch: ${{ env.SHORT_COMMIT_HASH }}"

Dockerfile

@@ -1,10 +1,7 @@
 # syntax=docker/dockerfile:1
 
-## global args
-ARG NODE_VERSION=18.16.1
-
-FROM node:${NODE_VERSION}
-SHELL [ "/bin/bash", "-cex" ]
+FROM node:18.16.1-alpine
+SHELL [ "/bin/sh", "-cex" ]
 
 # Create app directory
 WORKDIR /usr/src/app