feat: add homebrew to base images (#43)

.github/workflows/ci.yaml

@@ -11,19 +11,11 @@ on:
 
 jobs:
   build-images:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       -
         name: Checkout
         uses: actions/checkout@v2
-      -
-        name: Cache Docker layers
-        uses: actions/cache@v2
-        with:
-          path: /tmp/.buildx-cache
-          key: ${{ runner.os }}-buildx-${{ github.sha }}
-          restore-keys: |
-            ${{ runner.os }}-buildx-
       -
         name: Login to DockerHub
         uses: docker/login-action@v1 

images/base/Dockerfile.arch

@@ -30,3 +30,7 @@ RUN useradd -mUs /bin/bash coder && \
 RUN usermod -aG docker coder
 
 USER coder
+
+# install Homebrew, must be as a non-root user
+RUN /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
+ENV PATH /home/linuxbrew/.linuxbrew/bin:${PATH}

images/base/Dockerfile.centos

@@ -35,3 +35,7 @@ RUN adduser coder && \
 RUN usermod -aG docker coder
 
 USER coder
+
+# install Homebrew, must be as a non-root user
+RUN /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
+ENV PATH /home/linuxbrew/.linuxbrew/bin:${PATH}

images/base/Dockerfile.ubuntu

@@ -32,3 +32,7 @@ RUN adduser --gecos '' --disabled-password coder && \
 RUN usermod -aG docker coder
 
 USER coder
+
+# install Homebrew, must be as a non-root user
+RUN /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
+ENV PATH /home/linuxbrew/.linuxbrew/bin:${PATH}