From da3f8ad7a400f9fa55b285514e1fe6837ccb7e52 Mon Sep 17 00:00:00 2001
From: Sangelo <contact@sangelo.space>
Date: Fri, 5 Jan 2024 15:55:27 +0100
Subject: [PATCH] Initial Commit

---
 .gitignore                                    |  4 +
 LICENSE                                       |  2 +
 ansible.cfg                                   |  2 +
 inventory/beta.ini                            |  0
 inventory/group_vars/dockertest.yml           | 23 +++++
 inventory/host_vars/.gitkeep                  |  0
 inventory/prod.ini                            |  0
 inventory/test.ini                            |  2 +
 playbooks/test/dockertest.yml                 |  9 ++
 roles/common/tasks/main.yml                   | 10 ++
 roles/common_secure/defaults/main.yml         | 16 +++
 roles/common_secure/files/sangelo.pub         |  1 +
 roles/common_secure/handlers/main.yml         |  4 +
 roles/common_secure/tasks/main.yml            | 99 +++++++++++++++++++
 roles/common_tools/tasks/main.yml             |  9 ++
 roles/common_tweaks/defaults/main.yml         |  1 +
 .../files/etc/update-motd.d/01-motd           | 45 +++++++++
 roles/common_tweaks/tasks/main.yml            | 42 ++++++++
 roles/core_docker/tasks/main.yml              | 30 ++++++
 roles/core_docker/vars/main.yml               |  5 +
 roles/core_users/defaults/main.yml            |  5 +
 .../files/ssh_keys/sangelo-access.pub         |  1 +
 roles/core_users/files/ssh_keys/sangelo.pub   |  1 +
 roles/core_users/tasks/main.yml               | 40 ++++++++
 24 files changed, 351 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 LICENSE
 create mode 100644 ansible.cfg
 create mode 100644 inventory/beta.ini
 create mode 100644 inventory/group_vars/dockertest.yml
 create mode 100644 inventory/host_vars/.gitkeep
 create mode 100644 inventory/prod.ini
 create mode 100644 inventory/test.ini
 create mode 100644 playbooks/test/dockertest.yml
 create mode 100644 roles/common/tasks/main.yml
 create mode 100644 roles/common_secure/defaults/main.yml
 create mode 100644 roles/common_secure/files/sangelo.pub
 create mode 100644 roles/common_secure/handlers/main.yml
 create mode 100644 roles/common_secure/tasks/main.yml
 create mode 100644 roles/common_tools/tasks/main.yml
 create mode 100644 roles/common_tweaks/defaults/main.yml
 create mode 100644 roles/common_tweaks/files/etc/update-motd.d/01-motd
 create mode 100644 roles/common_tweaks/tasks/main.yml
 create mode 100644 roles/core_docker/tasks/main.yml
 create mode 100644 roles/core_docker/vars/main.yml
 create mode 100644 roles/core_users/defaults/main.yml
 create mode 100644 roles/core_users/files/ssh_keys/sangelo-access.pub
 create mode 100644 roles/core_users/files/ssh_keys/sangelo.pub
 create mode 100644 roles/core_users/tasks/main.yml

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..91a6087
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+.DS_Store
+.vault
+secrets.enc
+todo
\ No newline at end of file
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..e79f25d
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,2 @@
+# WIP
+# currently (c) Sangelo 2023-2024
\ No newline at end of file
diff --git a/ansible.cfg b/ansible.cfg
new file mode 100644
index 0000000..643c8de
--- /dev/null
+++ b/ansible.cfg
@@ -0,0 +1,2 @@
+[defaults]
+roles_path = roles/
diff --git a/inventory/beta.ini b/inventory/beta.ini
new file mode 100644
index 0000000..e69de29
diff --git a/inventory/group_vars/dockertest.yml b/inventory/group_vars/dockertest.yml
new file mode 100644
index 0000000..1194025
--- /dev/null
+++ b/inventory/group_vars/dockertest.yml
@@ -0,0 +1,23 @@
+proxmox_id: 100
+common_firewall_enable: false
+
+core_groups:
+  - name: "mgmt"
+    state: present
+
+core_users:
+  - name: "sangelo"
+    password: "!"
+    groups: ["sudo"]
+    state: present
+    authorized_keys:
+      - "sangelo"
+      - "sangelo-access"
+
+  - name: "dockertest"
+    password: "{{ sec_dockertest_pass }}"
+    group: "docker"
+    state: present
+    authorized_keys:
+      - "sangelo"
+      - "sangelo-access"
\ No newline at end of file
diff --git a/inventory/host_vars/.gitkeep b/inventory/host_vars/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/inventory/prod.ini b/inventory/prod.ini
new file mode 100644
index 0000000..e69de29
diff --git a/inventory/test.ini b/inventory/test.ini
new file mode 100644
index 0000000..2fd74ce
--- /dev/null
+++ b/inventory/test.ini
@@ -0,0 +1,2 @@
+[dockertest]
+10.1.1.1
\ No newline at end of file
diff --git a/playbooks/test/dockertest.yml b/playbooks/test/dockertest.yml
new file mode 100644
index 0000000..aa872bd
--- /dev/null
+++ b/playbooks/test/dockertest.yml
@@ -0,0 +1,9 @@
+---
+- name: install docker
+  hosts: dockertest
+  remote_user: root
+
+  roles:
+    - common
+    - core_docker
+    - core_users
\ No newline at end of file
diff --git a/roles/common/tasks/main.yml b/roles/common/tasks/main.yml
new file mode 100644
index 0000000..755f8ee
--- /dev/null
+++ b/roles/common/tasks/main.yml
@@ -0,0 +1,10 @@
+- name: Run all common tasks
+  ansible.builtin.include_role:
+    name: '{{ common_role }}'
+  loop:
+    - 'common_secure'
+    # - 'common_mgmt'
+    - 'common_tools'
+    - 'common_tweaks'
+  loop_control:
+    loop_var: common_role
diff --git a/roles/common_secure/defaults/main.yml b/roles/common_secure/defaults/main.yml
new file mode 100644
index 0000000..885d9e3
--- /dev/null
+++ b/roles/common_secure/defaults/main.yml
@@ -0,0 +1,16 @@
+# Make a full system upgrade (using apt-get full-upgrade)
+common_full_upgrade: false
+
+# Install and configure UFW Firewall on the system
+common_firewall_enable: true
+common_firewall_reject: false # reject all connections by default
+common_firewall_ssh: true # allow ssh connections
+common_firewall_https: false # allow https connections
+common_firewall_http: false # allow http connections
+
+# Configure SSH to only accept SSH Keys
+common_ssh_configure: true
+
+# This locks the root account *password*, but still allows SSH Key and sudo logins
+# To unlock the password, set this to false.
+common_lock_root: true
\ No newline at end of file
diff --git a/roles/common_secure/files/sangelo.pub b/roles/common_secure/files/sangelo.pub
new file mode 100644
index 0000000..ba331d7
--- /dev/null
+++ b/roles/common_secure/files/sangelo.pub
@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFg9CWMZHj6ksnVsxsZf/6sP6ae1kP2FSMPcfguYmXs1 contact@sangelo.space
diff --git a/roles/common_secure/handlers/main.yml b/roles/common_secure/handlers/main.yml
new file mode 100644
index 0000000..a7a1530
--- /dev/null
+++ b/roles/common_secure/handlers/main.yml
@@ -0,0 +1,4 @@
+- name: restart ssh
+  ansible.builtin.service:
+    name: sshd
+    state: restarted
\ No newline at end of file
diff --git a/roles/common_secure/tasks/main.yml b/roles/common_secure/tasks/main.yml
new file mode 100644
index 0000000..7f40fcc
--- /dev/null
+++ b/roles/common_secure/tasks/main.yml
@@ -0,0 +1,99 @@
+---
+# roles/common_secure/tasks/main.yml
+
+- name: Upgrade system packages
+  ansible.builtin.apt:
+    update_cache: true
+    upgrade: full
+  when: common_full_upgrade
+
+- name: Install UFW Firewall
+  ansible.builtin.apt:
+    name: ufw
+    # update_cache: true
+    state: present
+  when: common_firewall_enable
+
+- name: Enable UFW
+  community.general.ufw:
+    state: enabled
+    logging: 'on'
+  when: common_firewall_enable
+
+- name: Disable UFW Firewall
+  ansible.builtin.apt:
+    name: ufw
+    state: absent
+  when: not common_firewall_enable
+
+- name: Reject incoming connections by default
+  community.general.ufw:
+    policy: reject
+    comment: 'Reject all by default'
+  when: common_firewall_reject and common_firewall_enable
+
+- name: Allow SSH Connections
+  community.general.ufw:
+    rule: limit
+    port: ssh
+    proto: tcp
+    comment: 'Allow SSH'
+  when: common_firewall_ssh and common_firewall_enable
+
+- name: Allow HTTPS Connections
+  community.general.ufw:
+    rule: allow
+    port: https
+    proto: tcp
+    comment: 'Allow HTTPS'
+  when: common_firewall_https and common_firewall_enable
+
+- name: Allow HTTP Connections
+  community.general.ufw:
+    rule: allow
+    port: http
+    proto: tcp
+    comment: 'Allow HTTP'
+  when: common_firewall_http and common_firewall_enable
+
+- name: Configure SSH to disallow passwords
+  ansible.builtin.lineinfile:
+    path: /etc/ssh/sshd_config
+    regexp: "{{ ssh_config_entry.regexp }}"
+    line: "{{ ssh_config_entry.line }}"
+    state: present
+  loop:
+    - { regexp: '^PasswordAuthentication', line: 'PasswordAuthentication no' }
+  loop_control:
+    loop_var: ssh_config_entry
+  notify: restart ssh
+  when: common_ssh_configure
+
+- name: Add authorized ssh keys for root
+  ansible.posix.authorized_key:
+    user: root
+    state: present
+    key: "{{ lookup('file', ssh_key_file) }}"
+  loop: "{{ query('fileglob', '../files/*') }}"
+  loop_control:
+    loop_var: ssh_key_file
+
+- name: Lock the root account
+  ansible.builtin.user:
+    name: root
+    password_lock: "{{ 'no' if common_lock_root is defined and not common_lock_root else 'yes' }}"
+
+# - name: Configure SSH to disallow root login
+#   ansible.builtin.lineinfile:
+#     path: /etc/ssh/sshd_config
+#     regexp: '^PermitRootLogin'
+#     line: 'PermitRootLogin no'
+#     state: present
+#   notify: restart ssh
+#   when: common_ssh_configure
+
+# - name: Disable root shell
+#   ansible.builtin.user:
+#     name: root
+#     shell: /usr/sbin/nologin
+#   when: common_disable_root
diff --git a/roles/common_tools/tasks/main.yml b/roles/common_tools/tasks/main.yml
new file mode 100644
index 0000000..b78cf49
--- /dev/null
+++ b/roles/common_tools/tasks/main.yml
@@ -0,0 +1,9 @@
+---
+# roles/common_tools/tasks/main.yml
+- name: Install common tools
+  ansible.builtin.apt:
+    pkg:
+    - vim
+    - curl
+    update_cache: true
+    state: present
\ No newline at end of file
diff --git a/roles/common_tweaks/defaults/main.yml b/roles/common_tweaks/defaults/main.yml
new file mode 100644
index 0000000..be320fb
--- /dev/null
+++ b/roles/common_tweaks/defaults/main.yml
@@ -0,0 +1 @@
+proxmox_id: "'PLEASE SET IN ANSIBLE'"
\ No newline at end of file
diff --git a/roles/common_tweaks/files/etc/update-motd.d/01-motd b/roles/common_tweaks/files/etc/update-motd.d/01-motd
new file mode 100644
index 0000000..c3ba54f
--- /dev/null
+++ b/roles/common_tweaks/files/etc/update-motd.d/01-motd
@@ -0,0 +1,45 @@
+#!/bin/bash
+
+source /etc/environment
+
+# Function to get usage and colorize based on the percentage
+get_usage_color() {
+    local usage=$1
+    if [ $usage -lt 60 ]; then
+        echo -e "\e[32m${usage}%\e[0m" # Dark Green for < 60%
+    elif [ $usage -lt 80 ]; then
+        echo -e "\e[92m${usage}%\e[0m" # Green for >= 60% and < 80%
+    elif [ $usage -lt 90 ]; then
+        echo -e "\e[93m${usage}%\e[0m" # Orange for >= 80% and < 90%
+    else
+        echo -e "\e[91m${usage}%\e[0m" # Red for >= 90%
+    fi
+}
+
+echo "===================="
+
+# Hostname
+echo "Connecting to: $(hostname) ($PROXMOX_ID)"
+
+# CPU Usage
+cpu_usage=$(grep 'cpu ' /proc/stat | awk '{usage=($2+$4)*100/($2+$4+$5)} END {print usage}')
+cpu_color=$(get_usage_color ${cpu_usage%.*})
+echo "CPU Usage: $cpu_color"
+
+# RAM Usage
+ram_usage=$(free | grep Mem | awk '{print $3/$2 * 100.0}')
+ram_color=$(get_usage_color ${ram_usage%.*})
+echo "RAM Usage: $ram_color"
+
+# Disk Usage
+disk_usage=$(df -h / | awk 'NR==2 {print $5}' | sed 's/%//g')
+disk_color=$(get_usage_color $disk_usage)
+echo "Disk Usage: $disk_color"
+
+# Swap Usage
+swap_usage=$(free | grep Swap | awk '{print $3/$2 * 100.0}')
+swap_color=$(get_usage_color ${swap_usage%.*})
+echo "Swap Usage: $swap_color"
+
+echo -e "====================
+"
diff --git a/roles/common_tweaks/tasks/main.yml b/roles/common_tweaks/tasks/main.yml
new file mode 100644
index 0000000..b33fc4e
--- /dev/null
+++ b/roles/common_tweaks/tasks/main.yml
@@ -0,0 +1,42 @@
+---
+# roles/common_tweaks/tasks/main.yml
+
+- name: Find existing files in /etc/update-motd.d
+  ansible.builtin.find:
+    paths: /etc/update-motd.d
+  register: files_to_remove
+
+- name: Remove other files in /etc/update-motd.d
+  ansible.builtin.file:
+    path: "{{ item.path }}"
+    state: absent
+  with_items: "{{ files_to_remove.files }}"
+  when: item.path != '/etc/update-motd.d/01-motd'
+
+- name: Copy 01-motd to /etc/update-motd.d on remote host
+  ansible.builtin.copy:
+    src: ../files/etc/update-motd.d/01-motd
+    dest: /etc/update-motd.d/01-motd
+    mode: '0755'
+
+- name: Ensure /etc/motd is empty
+  ansible.builtin.copy:
+    content: ''
+    dest: /etc/motd
+    mode: '0644'
+
+- name: Add Proxmox-ID to /etc/environment ({{ proxmox_id }})
+  ansible.builtin.lineinfile:
+    path: /etc/environment
+    regexp: '^PROXMOX_ID='
+    line: 'PROXMOX_ID={{ proxmox_id }}'
+    create: yes
+    state: present
+
+- name: Add a warning comment
+  ansible.builtin.lineinfile:
+    path: /etc/environment
+    insertbefore: "^PROXMOX_ID="
+    line: "# Do not change the line below - it is set by Ansible"
+    create: yes
+    state: present
diff --git a/roles/core_docker/tasks/main.yml b/roles/core_docker/tasks/main.yml
new file mode 100644
index 0000000..9a95eb1
--- /dev/null
+++ b/roles/core_docker/tasks/main.yml
@@ -0,0 +1,30 @@
+---
+# roles/core_docker/tasks/main.yml
+
+- name: Install prerequisites
+  ansible.builtin.apt:
+    name:
+      - apt-transport-https
+      - ca-certificates
+      - curl
+      - software-properties-common
+    state: present
+    update_cache: yes
+
+- name: Add Docker GPG Key
+  apt_key:
+    url: https://download.docker.com/linux/{{ distro }}/gpg
+    state: present
+
+- name: Add Docker Repository
+  apt_repository:
+    repo: deb https://download.docker.com/linux/{{ distro }} {{ codename }} stable
+    state: present
+
+- name: Install Docker
+  ansible.builtin.apt:
+    name:
+      - docker-ce
+      - docker-compose-plugin
+    state: present
+    update_cache: yes
diff --git a/roles/core_docker/vars/main.yml b/roles/core_docker/vars/main.yml
new file mode 100644
index 0000000..457352a
--- /dev/null
+++ b/roles/core_docker/vars/main.yml
@@ -0,0 +1,5 @@
+---
+# roles/core_docker/vars/main.yml
+
+distro: "debian"      # Replace with your debian-based distribution
+codename: "bookworm"  # Replace with your distribution codename
diff --git a/roles/core_users/defaults/main.yml b/roles/core_users/defaults/main.yml
new file mode 100644
index 0000000..d3081b8
--- /dev/null
+++ b/roles/core_users/defaults/main.yml
@@ -0,0 +1,5 @@
+---
+# roles/core_users/defaults/main.yml
+
+# SSH keys directory path
+ssh_keys_dir: "{{ role_path }}/files/ssh_keys"
diff --git a/roles/core_users/files/ssh_keys/sangelo-access.pub b/roles/core_users/files/ssh_keys/sangelo-access.pub
new file mode 100644
index 0000000..823de5b
--- /dev/null
+++ b/roles/core_users/files/ssh_keys/sangelo-access.pub
@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFg9CWMZHj6ksnVsxsZf/6sP6ae1kP2FSMPcfguYmXs1 contact@sangelo.space
\ No newline at end of file
diff --git a/roles/core_users/files/ssh_keys/sangelo.pub b/roles/core_users/files/ssh_keys/sangelo.pub
new file mode 100644
index 0000000..57f55ab
--- /dev/null
+++ b/roles/core_users/files/ssh_keys/sangelo.pub
@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEYGOjYJ6UbBz77mXG8zR2YWlbA8jxknBifLYMck+02a contact@sangelo.space
\ No newline at end of file
diff --git a/roles/core_users/tasks/main.yml b/roles/core_users/tasks/main.yml
new file mode 100644
index 0000000..666ea46
--- /dev/null
+++ b/roles/core_users/tasks/main.yml
@@ -0,0 +1,40 @@
+---
+# roles/core_users/tasks/main.yml
+
+# requires python3-jmespath to run (pipx inject ansible-core jmespath)
+
+- name: Ensure groups exist
+  ansible.builtin.group:
+    name: "{{ group_item.name }}"
+    state: "{{ group_item.state | default('present') }}"
+    gid: "{{ group_item.gid | default(omit) }}"
+    system: "{{ group_item.system | default(omit) }}"
+  loop: "{{ core_groups }}"
+  loop_control:
+    loop_var: group_item
+  when: core_groups is defined
+
+- name: Ensure users exist
+  ansible.builtin.user:
+    name: "{{ user_item.name }}"
+    state: "{{ user_item.state | default('present') }}"
+    password: "{{ user_item.password | default(omit) }}"
+    shell: "{{ user_item.shell | default('/bin/bash') }}"
+    system: "{{ user_item.system | default(omit) }}"
+    uid: "{{ user_item.uid | default(omit) }}"
+    group: "{{ user_item.group | default(omit) }}"
+    groups: "{{ user_item.groups | default(omit) }}"
+    append: "{{ user_item.append | default(omit) }}"
+    create_home: "{{ user_item.create_home | default(omit) }}"
+    home: "{{ user_item.home | default(omit) }}"
+  loop: "{{ core_users }}"
+  loop_control:
+    loop_var: user_item
+  when: core_users is defined
+
+- name: Authorized keys
+  ansible.posix.authorized_key:
+    user: "{{ item.0.name }}"
+    state: present
+    key: "{{ lookup('file', ssh_keys_dir+'/'+item.1+'.pub') }}"
+  loop: "{{ query('subelements', core_users, 'authorized_keys', {'skip_missing': True}) }}"