init

.ansible-lint.yml

@@ -0,0 +1,13 @@
+---
+skip_list:
+  - "106"
+  - "204"
+  - "207"
+  - "208"
+  - "301"
+  - "305"
+  - "503"
+  - "602"
+  - "no-log-password"
+  - yaml
+  - "risky-shell-pipe"

.drone.yml

@@ -0,0 +1,14 @@
+----
+kind: pipeline
+name: default
+steps:
+  - name: integration test
+    image: python:3.9-buster
+    environment:
+      REMOTE_USER: molecule
+      HCLOUD_TOKEN:
+        from_secret: HCLOUD_TOKEN
+    commands:
+      - pip install -r requirements.txt
+      - export INSTANCE_UUID=$(pwgen 8 1)
+      - molecule test

.envrc.sample

@@ -0,0 +1,18 @@
+# Your username that you use for accounts on our machines.
+export REMOTE_USER=
+export ANSIBLE_USER=$REMOTE_USER
+
+# The path to our pass credentials store
+export PASSWORD_STORE_DIR=
+
+# The Hetzner Cloud API token for managing our instances
+# Uncomment the prod/test line below depending on what you're doing
+# export HCLOUD_TOKEN=$(pass show logins/hetzner/prod/api_key)
+# export HCLOUD_TOKEN=$(pass show logins/hetzner/test/api_key)
+export HCLOUD_TOKEN=$(pass show logins/hetzner/cicd/api_key)
+
+# For molecule role testing
+export INSTANCE_UUID=$RANDOM
+
+# So molecule will show credentials in the logs
+export MOLECULE_NO_LOG=False

.gitignore

@@ -0,0 +1,3 @@
+.env
+.envrc
+/.venv/

.yamllint.yml

@@ -0,0 +1,16 @@
+---
+extends: default
+
+yaml-files:
+  - "*.yaml"
+  - "*.yml"
+
+ignore: |
+  .venv
+  .drone.yml
+
+rules:
+  line-length: disable
+  braces:
+    max-spaces-inside: 1
+    level: error

README.md

@@ -0,0 +1,3 @@
+# autonomic.add-users
+
+[![Build Status](https://drone.autonomic.zone/api/badges/autonomic-cooperative/autonomic.add-users/status.svg?ref=refs/heads/main)](https://drone.autonomic.zone/autonomic-cooperative/autonomic.add-users)

defaults/main.yml

@@ -0,0 +1,4 @@
+---
+pass_length: 30
+user_groups:
+  - sudo

handlers/main.yml

@@ -0,0 +1,6 @@
+---
+- name: Restart SSH
+  become: true
+  service:
+    name: ssh
+    state: restarted

molecule/default/converge.yml

@@ -0,0 +1,29 @@
+---
+- name: Converge
+  hosts: all
+  vars:
+    members: files/members.yml
+  pre_tasks:
+    - name: Wait for Hetzner VPS networking to come up
+      pause:
+        seconds: 10
+        echo: false
+
+    - name: Include resource variables
+      include_vars: "{{ members }}"
+
+    # Note(decentral1se): We create the accounts before the role since we do
+    # not make molecule test this part of the role under test because we do not
+    # setup the password store. So, instead, we ensure the other parts are
+    # working.
+    - name: Prepare user accounts for the new role
+      user:
+        name: "{{ item.username }}"
+        shell: /bin/bash
+        password: "$apr1$GILkREir$r2zDF8rr9Bl8We9UVXnZl1"
+        groups: "{{ user_groups }}"
+        append: true
+        update_password: always
+      with_items: "{{ members }}"
+  roles:
+    - role: autonomic.add-users

molecule/default/files/members.yml

@@ -0,0 +1,6 @@
+---
+members:
+  - username: foobar
+    email: barfoo
+    ssh_key: "ssh-rsa foo bar@nowhere.com"
+    uid: 1100

molecule/default/molecule.yml

@@ -0,0 +1,19 @@
+---
+dependency:
+  name: galaxy
+
+driver:
+  name: hetznercloud
+
+platforms:
+  - name: "autonomic.add-users-${INSTANCE_UUID}"
+    server_type: cx11
+    image: debian-10
+
+provisioner:
+  name: ansible
+
+lint: |
+  set -e
+  yamllint -c .yamllint.yml .
+  ansible-lint --exclude .drone.yml -c .ansible-lint.yml .

requirements.txt

@@ -0,0 +1,4 @@
+ansible-lint==6.0.0
+ansible==5.4.0
+molecule-hetznercloud==1.3.0
+molecule==3.6.1

tasks/main.yml

@@ -0,0 +1,18 @@
+---
+- name: Ensure mandatory variables are configured
+  assert:
+    that: "{{ item }} is defined"
+    fail_msg: "You must define the '{{ item }}' variable"
+  with_items:
+    - members
+
+- name: Include resource variables
+  include_vars: "{{ members }}"
+  tags:
+    # Note(d1): we already load in converge.yml so skip here
+    - molecule-notest
+
+# Note(d1): Done in this way because https://stackoverflow.com/a/39041069
+- name: Include user addition tasks
+  include: users.yml user={{ item }}
+  with_items: "{{ members }}"

tasks/users.yml

@@ -0,0 +1,60 @@
+---
+- name: "Create new user account"
+  block:
+    - name: Show which user account is being handled
+      debug:
+        msg: "Attempting to create account for {{ user.username }}..."
+
+    - name: Check if the user accounts already exists
+      getent:
+        database: passwd
+        key: "{{ user.username }}"
+      register: user_exists
+      ignore_errors: true
+
+    - name: Prepare password store entry
+      become: false
+      delegate_to: localhost
+      command: "pass init -p users/{{ user.username }}/sudo/ {{ item.email }}"
+      when: user_exists is failed
+      tags:
+        - molecule-notest
+
+    - name: Create a new user account with a new password
+      user:
+        name: "{{ user.username }}"
+        uid: "{{ user.uid }}"
+        shell: /bin/bash
+        password: "{{ lookup('passwordstore', 'users/{{ user.username }}/sudo/{{ inventory_hostname }} create=true length={{ pass_length }}') | password_hash('sha512') }}"
+        groups: "{{ user_groups }}"
+        append: true
+        update_password: always
+      when: user_exists is failed
+      tags:
+        - molecule-notest
+
+    - name: Make sure the user's .ssh directory exists
+      file:
+        path: "/home/{{ user.username }}/.ssh"
+        state: directory
+        owner: "{{ user.username }}"
+        group: "{{ user.username }}"
+        mode: "0700"
+
+    - name: Add new member's SSH key to authorized_keys file
+      blockinfile:
+        path: "/home/{{ user.username }}/.ssh/authorized_keys"
+        block: "{{ user.ssh_key }}"
+        state: present
+        create: true
+        mode: "0600"
+        owner: "{{ user.username }}"
+        group: "{{ user.username }}"
+
+    - name: "Add username to the SSH AllowUsers configuration"
+      replace:
+        backup: true
+        dest: /etc/ssh/sshd_config
+        regexp: '^(AllowUsers(?!.*\b{{ user.username }}\b).*)$'
+        replace: '\1 {{ user.username }}'
+      notify: Restart SSH