Add ansible docker execution environment (Dockerfile, requirements, runner script)

docker/Dockerfile

@@ -0,0 +1,35 @@
+FROM debian:trixie-slim
+ARG DEBIAN_FRONTEND=noninteractive
+ENV TZ=Europe/Berlin
+ENV ANSIBLE_VERSION=2.20.6
+ENV PIP_BREAK_SYSTEM_PACKAGES=1
+
+RUN apt update && apt install -y --no-install-recommends \
+    nano \
+    git \
+    wget \
+    unzip \
+    curl \
+    python3-pip \
+    tzdata \
+    openssh-client \
+    iputils-ping \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN mkdir -p /etc/ssh/ssh_config.d \
+    && printf 'Host *\n  StrictHostKeyChecking no\n  UserKnownHostsFile /dev/null\n' > /etc/ssh/ssh_config.d/99-no-hostkey-check.conf
+
+RUN pip3 install --no-cache-dir --upgrade \
+    ansible-core~=${ANSIBLE_VERSION}
+
+RUN mkdir -p /root/.bashrc.d
+COPY ansible-functs.sh /root/.bashrc.d/ansible-functs.sh
+RUN chmod +x /root/.bashrc.d/ansible-functs.sh \
+    && printf '\n[ -f /root/.bashrc.d/ansible-functs.sh ] && . /root/.bashrc.d/ansible-functs.sh\n' >> /root/.bashrc
+
+COPY requirements.yml /ansible/requirements.yml
+RUN ansible-galaxy collection install -r /ansible/requirements.yml
+
+WORKDIR /ansible
+
+CMD ["ansible-playbook", "--version"]

docker/ansible-functs.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+# Useful bashrc functions for ansible in docker
+
+alias ll='ls -alF'
+alias la='ls -A'
+alias l='ls -CF'
+
+alias ap='ansible-playbook'
+alias ag='ansible-galaxy'
+alias av='ansible-vault'
+

docker/requirements.yml

@@ -0,0 +1,7 @@
+collections:
+  - name: ansible.posix
+    version: 2.2.0
+  - name: community.general
+    version: 13.0.1
+  - name: community.docker
+    version: 5.2.0

execute.sh

@@ -0,0 +1,62 @@
+#!/bin/bash
+
+defaultimage="ansible:deb13"
+
+export ANSIBLE_HOST_KEY_CHECKING=False
+export ANSIBLE_SSH_ARGS='-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null'
+export ANSIBLE_CONFIG=./ansible.cfg
+
+# Ermittle den nächsten freien Container-Namen
+base_name="ansible"
+network_name="ansible-dualstack"
+counter=1
+while docker ps -a --format '{{.Names}}' | grep -q "^${base_name}-${counter}$"; do
+  counter=$((counter + 1))
+done
+container_name="${base_name}-${counter}"
+
+if docker network inspect "$network_name" >/dev/null 2>&1; then
+  network_ipv6_enabled=$(docker network inspect -f '{{.EnableIPv6}}' "$network_name" 2>/dev/null)
+  if [ "$network_ipv6_enabled" != "true" ]; then
+    echo "Docker-Netzwerk '$network_name' existiert bereits ohne IPv6-Unterstuetzung." >&2
+    echo "Bitte Netzwerk entfernen oder einen anderen Netzwerknamen verwenden." >&2
+    exit 1
+  fi
+else
+  if ! docker network create --driver bridge --ipv6 "$network_name" >/dev/null; then
+    echo "Docker-Netzwerk '$network_name' mit IPv6 konnte nicht erstellt werden." >&2
+    echo "Pruefe, ob Docker IPv6 fuer benutzerdefinierte Bridge-Netze unterstuetzt." >&2
+    exit 1
+  fi
+fi
+
+docker run --rm -dit \
+  --name "$container_name" \
+  --hostname "$container_name" \
+  --network "$network_name" \
+  -e ANSIBLE_HOST_KEY_CHECKING=False \
+  -e ANSIBLE_SSH_ARGS='-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null' \
+  -e ANSIBLE_CONFIG=./ansible.cfg \
+  -v "$(pwd):/ansible" \
+  -v ansible_ssh_keys:/root/.ssh \
+  -w /ansible \
+  $defaultimage \
+  "/bin/bash"
+
+docker exec "$container_name" sh -lc "mkdir -p /root/.ssh && chmod 700 /root/.ssh && printf 'Host *\n  StrictHostKeyChecking no\n  UserKnownHostsFile /dev/null\n' > /root/.ssh/config && chmod 600 /root/.ssh/config"
+
+container_ipv4=$(docker inspect -f '{{range .NetworkSettings.Networks}}{{if .IPAddress}}{{.IPAddress}}{{end}}{{end}}' "$container_name" 2>/dev/null)
+container_ipv6=$(docker inspect -f '{{range .NetworkSettings.Networks}}{{if .GlobalIPv6Address}}{{.GlobalIPv6Address}}{{end}}{{end}}' "$container_name" 2>/dev/null)
+container_os=$(docker exec "$container_name" sh -c 'grep PRETTY_NAME /etc/os-release 2>/dev/null | cut -d= -f2 | tr -d "\"" 2>/dev/null')
+
+echo "-----------------------------------"
+echo "Container Name : $container_name"
+echo "Container IPv4 : ${container_ipv4:-n/a}"
+echo "Container IPv6 : ${container_ipv6:-n/a}"
+echo "Container OS   : ${container_os:-n/a}"
+echo "-----------------------------------"
+
+docker attach "$container_name"
+
+
+