added testing environment container (#2)

* added testing environment container

* updated testing environment to have systemd and ssh server

* added test admin to sudo group and fixed test environment container not building

Author: mikhail729

.github/workflows/testing-environment.yml

@@ -0,0 +1,33 @@
+name: Build and push testing-environment Docker image
+on:
+  push:
+    tags:
+      - 'testing-environment-*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: Get release version
+      id: get_version
+      run: echo RELEASE_VERSION=$(echo ${GITHUB_REF:25}) >> $GITHUB_ENV
+    - name: Build and push Docker image
+      uses: docker/build-push-action@v1
+      with:
+        repository: wuvt/testing-environment
+        username: ${{ secrets.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_PASSWORD }}
+        tags: latest,${{ env.RELEASE_VERSION }}
+        path: testing-environment
+        add_git_labels: true
+    - name: Build and push Docker image to GitHub Container Registry
+      uses: docker/build-push-action@v1
+      with:
+        repository: wuvt/testing-environment
+        username: wuvt
+        password: ${{ secrets.GITHUB_TOKEN }}
+        registry: ghcr.io
+        tags: latest,${{ env.RELEASE_VERSION }}
+        path: testing-environment
+        add_git_labels: true

testing-environment/Dockerfile

@@ -0,0 +1,30 @@
+FROM ubuntu:24.04
+LABEL maintainer="WUVT IT"
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+# Install dependencies.
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+       software-properties-common \
+       rsyslog systemd systemd-cron sudo iproute2 \
+       openssh-server \
+    && apt-get clean \
+    && rm -Rf /var/lib/apt/lists/* \
+    && rm -Rf /usr/share/doc && rm -Rf /usr/share/man
+RUN sed -i 's/^\($ModLoad imklog\)/#\1/' /etc/rsyslog.conf
+
+COPY initctl_faker .
+RUN chmod +x initctl_faker && rm -fr /sbin/initctl && ln -s /initctl_faker /sbin/initctl
+
+# Remove unnecessary getty and udev targets that result in high CPU usage when using
+# multiple containers with Molecule (https://github.com/ansible/molecule/issues/1104)
+RUN rm -f /lib/systemd/system/systemd*udev* \
+  && rm -f /lib/systemd/system/getty.target
+
+RUN useradd -m tadmin -p '$1$BGGb.rYO$FoQmsTiSsKXPMqcm9uvlP1' -s /bin/bash
+RUN usermod -aG sudo tadmin
+
+VOLUME ["/sys/fs/cgroup", "/tmp", "/run"]
+EXPOSE 22
+CMD ["/lib/systemd/systemd"]

testing-environment/initctl_faker

@@ -0,0 +1,23 @@
+#!/bin/sh
+ALIAS_CMD="$(echo ""$0"" | sed -e 's?/sbin/??')"
+
+case "$ALIAS_CMD" in
+    start|stop|restart|reload|status)
+        exec service $1 $ALIAS_CMD
+        ;;
+esac
+
+case "$1" in
+    list )
+        exec service --status-all
+        ;;
+    reload-configuration )
+        exec service $2 restart
+        ;;
+    start|stop|restart|reload|status)
+        exec service $2 $1
+        ;;
+    \?)
+        exit 0
+        ;;
+esac