# The control node: ansible-core, python3-pip (for ansible-navigator's # virtual environment) and greg with a key and quiet rootless podman. for p in ansible-core python3-pip; do pkg_installed $p || { echo $p >>"$LAB_STATE/missing"; pkg_install $p; } done user_add greg install -d -m 700 -o greg -g greg /home/greg/.ssh runuser -u greg -- ssh-keygen -q -t ed25519 -N '' -f /home/greg/.ssh/id_ed25519 # Without a systemd user session (su, sudo -i), podman would warn on every # run; the cgroupfs manager works the same in any login. install -d -m 755 -o greg -g greg /home/greg/.config /home/greg/.config/containers printf '[engine]\ncgroup_manager = "cgroupfs"\nevents_logger = "file"\n' >/home/greg/.config/containers/containers.conf chown greg: /home/greg/.config/containers/containers.conf # greg's project: ansible.cfg, inventory, ansible-navigator.yml without a # mode, and site.yml, which records each run on the node (task 1). install -d -m 755 -o greg -g greg /home/greg/ansible cat >/home/greg/ansible/ansible.cfg <<'X' [defaults] inventory = ./inventory remote_user = devops host_key_checking = false [privilege_escalation] become = true X printf '[nodes]\nnode1\nnode2\n' >/home/greg/ansible/inventory cat >/home/greg/ansible/ansible-navigator.yml <<'X' --- ansible-navigator: execution-environment: image: localhost/lab-ee:2.16 pull: policy: never playbook-artifact: enable: false X cat >/home/greg/ansible/site.yml <<'X' --- - name: Check the managed nodes hosts: all vars: run_by: "{{ 'ansible-navigator' if lookup('ansible.builtin.env', 'ANSIBLE_STDOUT_CALLBACK') == 'awx_display' else 'ansible-playbook' }}" run_in: "{{ 'an execution environment' if lookup('ansible.builtin.env', 'container') else 'the control node' }}" tasks: - name: Make sure the node answers ansible.builtin.ping: - name: Record this run in /var/log/lab-runs.log ansible.builtin.lineinfile: path: /var/log/lab-runs.log line: "{{ now(utc=true, fmt='%Y-%m-%d %H:%M:%S') }} {{ run_by }} in {{ run_in }}, limit {{ ansible_limit | default('none') }}" create: true mode: "0644" changed_when: false X chown greg: /home/greg/ansible/* # The note for task 3, outside the project. N=$(od -An -N6 -tx1 /dev/urandom | tr -d ' \n') state_set note "$N" printf 'The note says: %s\n' "$N" >/tmp/lab-note.txt chown greg: /tmp/lab-note.txt # The managed nodes, with devops: greg's key and passwordless sudo. nodes_up 2 for n in $(nodes_names); do in_node "$n" 'useradd -m devops && printf "devops ALL=(ALL) NOPASSWD: ALL\n" >/etc/sudoers.d/devops && chmod 440 /etc/sudoers.d/devops && install -d -m 700 -o devops -g devops /home/devops/.ssh' in_node -i "$n" 'cat >/home/devops/.ssh/authorized_keys && chown devops: /home/devops/.ssh/authorized_keys && chmod 600 /home/devops/.ssh/authorized_keys' /dev/null && break sleep 5 done ln -s /opt/le-lab-navigator/bin/ansible-navigator /usr/local/bin/ansible-navigator /usr/local/bin/ansible-navigator --version >/dev/null state_set navigator installed fi # The execution environment localhost/lab-ee:2.16: the node image with # ansible-core and ansible.posix and community.general from Ansible Galaxy. # Built as root, given to greg's rootless podman, and removed from root's. say "${C_DIM}Building the execution environment image...${C_0}" d=$(mktemp -d) cat >"$d/Containerfile" <=2,<3' 'community.general:>=11,<12' && break; sleep 5; \\ done \\ && ansible-doc community.general.lvg >/dev/null && ansible-doc ansible.posix.seboolean >/dev/null \\ && dnf clean all X podman build -q --layers=false -t localhost/lab-ee:2.16 "$d" >/dev/null rm -rf "$d" podman save localhost/lab-ee:2.16 | runuser -l greg -c 'podman load -q' >/dev/null 2>&1 podman rmi localhost/lab-ee:2.16 >/dev/null runuser -l greg -c 'podman image exists localhost/lab-ee:2.16'