inital commit of LXC base image creation

README.md

@@ -20,6 +20,15 @@ The following playbook will set the iDRAC settings for all hosts in the inventor
 $ ansible-playbook --vault-password-file vault-password compute/playbook-machine-idrac.yaml -i compute/inventory-machine-idrac.yaml
 ```
 
+### Fritzlab LXC Base Image  
+
+We manage the Fritzlab LXC base image via Ansible.
+The following playbook will create the base image on the Proxmox host.
+
+```bash
+$ ansible-playbook --vault-password-file vault-password lxc/playbook-base-lxc.yaml -i lxc/inventory-host-proxmox.yaml
+```
+
 ### Secrets 
 
 We use ansible-vault to encrypt secrets. 
@@ -54,4 +63,3 @@ dell_machines:
           3738316235663337370a333031643466323962643034313433666236313831643861656461643833
           35316235356566333761333635356337373632646365343364373563613034636334
 ```
-

lxc/inventory-host-proxmox.yaml

@@ -0,0 +1,14 @@
+all:
+  hosts:
+    host201:
+      ansible_user: root
+      ansible_password: !vault |
+        $ANSIBLE_VAULT;1.1;AES256
+        63366438616366643633383736323435656637386137376166613765663962623761333762663461
+        3966613863636636376636343533623936666334626336620a623433363830326262663238636532
+        34323731623766396163313063333266666266396539616533626135656661393064613530326633
+        3336643339616434650a313464653764666264346564363166656531306165613037623035333038
+        33336337303565663530626632666462313832316231306633333263396164306462
+      ansible_host: host201.sjc001.fritzlab.net
+      ipv4_address: 172.25.6.201
+      ipv6_address: 2602:817:3000:c206::201

lxc/playbook-base-lxc.yaml

@@ -0,0 +1,181 @@
+---
+- name: Create Fritzlab Base LXC Container
+  hosts:
+    - "host201"
+  become: true
+  vars:
+    debian_os: "debian"
+    debian_version: "bookworm"
+    lxc_name: "fritzlab-base"
+    lxc_image_artifact_name: "{{ lxc_name }}-{{ timestamp }}.tar.gz"
+    lxc_base_dir: "/var/lib/lxc"
+    lxc_template_dir: "/var/lib/vz/template/cache"
+    working_lxc_dir: "{{ lxc_base_dir }}/{{ lxc_name }}"
+    working_rootfs_dir: "{{ working_lxc_dir }}/rootfs"
+    working_chroot: "chroot {{ working_rootfs_dir }}"
+    lxc_unnecessary_units:
+      - nftables.service
+      - systemd-logind.service
+      - systemd-sysusers.service
+      - systemd-tmpfiles-setup-dev.service
+      - systemd-tmpfiles-setup.service
+      - postfix.service
+      - iperf3.service
+      - sys-kernel-config.mount
+      - sys-kernel-debug.mount
+    debian_apt_packages:
+      - openssh-server
+      - htop
+      - nano
+      - wget
+      - curl
+      - iperf3
+      - tree
+      - tmux
+      - dnsutils
+      - iftop
+      - net-tools
+  tasks:
+
+    # Set the timestamp to ensure it is the same across all tasks
+    - name: Generate static timestamp
+      set_fact:
+        timestamp: "{{ '%Y%m%d-%H%M%S' | strftime }}"
+
+    #- name: Update apt repos
+    #  apt:
+    #    update_cache: yes
+
+    #- name: Ensure required packages are installed
+    #  apt:
+    #    state: present
+    #    name:
+    #      - debootstrap
+    #      - tar
+
+    - name: Check if LXC container directory exists on host
+      stat:
+        path: "{{ working_lxc_dir }}"
+      register: lxc_dir_check
+
+    - name: Ensure clean LXC container root filesystem on host
+      ignore_errors: yes
+      when: lxc_dir_check.stat.exists
+      command:
+        cmd: "rm -rf {{ working_lxc_dir }}"
+
+    - name: Download and create LXC container root filesystem on host
+      command:
+        cmd: "debootstrap --arch=amd64 {{ debian_version }} {{ working_rootfs_dir }} https://deb.debian.org/debian/"
+      args:
+        creates: "{{ working_rootfs_dir }}"
+
+    - name: Update apt in the container
+      command:
+        cmd: "{{ working_chroot }} /bin/bash -c 'apt update'"
+
+    - name: Install additional packages in the container
+      command:
+        cmd: "{{ working_chroot }} /bin/bash -c 'DEBIAN_FRONTEND=noninteractive apt install -y {{ debian_apt_packages | join(' ') }}'"
+
+    - name: Configure environment variables
+      template:
+        src: environment.j2
+        dest: "{{ working_rootfs_dir }}/etc/environment"
+
+    - name: Set up Message of the Day (MOTD)
+      template:
+        src: motd.j2
+        dest: "{{ working_rootfs_dir }}/etc/motd"
+
+    - name: Set Authorized SSH Keys
+      template:
+        src: authorized_keys.j2
+        dest: "{{ working_rootfs_dir }}/root/.ssh/authorized_keys"
+
+    - name: Create managed .bashrc file
+      template:
+        src: bash.bashrc.j2
+        dest: "{{ working_rootfs_dir }}/etc/bash.bashrc"
+
+    - name: Create .digrc file
+      template:
+        src: digrc.j2
+        dest: "{{ working_rootfs_dir }}/root/.digrc"
+
+    - name: Create locale file
+      template:
+        src: locale.j2
+        dest: "{{ working_rootfs_dir }}/etc/default/locale"
+
+    - name: Check if SSH configuration directory exists
+      stat:
+        path: "{{ working_rootfs_dir }}/etc/ssh/sshd_config.d"
+      register: ssh_config_dir_check
+
+    - name: SSH Configuration
+      template:
+        src: sshd_config.j2
+        dest: "{{ working_rootfs_dir }}/etc/ssh/sshd_config.d/fritzlab.conf"
+      when: ssh_config_dir_check.stat.exists
+
+    - name: SSH Banner
+      template:
+        src: sshd_banner.j2
+        dest: "{{ working_rootfs_dir }}/etc/ssh/banner.txt"
+      when: ssh_config_dir_check.stat.exists
+
+    - name: Sysctl Configuration
+      template:
+        src: sysctl.j2
+        dest: "{{ working_rootfs_dir }}/etc/sysctl.d/s99-fritzlab.conf"
+
+    - name: Mask unnecessary systemd units
+      command:
+        cmd: "{{ working_chroot }} /bin/bash -c 'systemctl mask {{ lxc_unnecessary_units | join(' ') }}'"
+
+    - name: Clean APT cache in the container
+      command:
+        cmd: "{{ working_chroot }} /bin/bash -c 'apt clean'"
+
+    - name: Remove unnecessary locale files in the container
+      command:
+        cmd: "{{ working_chroot }} /bin/bash -c 'rm -rf /usr/share/locale/* /usr/share/man/* /usr/share/doc/*'"
+
+    - name: Remove temporary files in the container
+      command:
+        cmd: "{{ working_chroot }} /bin/bash -c 'rm -rf /var/tmp/* /var/cache/* /tmp/*'"
+
+    - name: Remove device files before archiving in the container
+      command:
+        cmd: "rm -rf {{ working_rootfs_dir }}/dev/*"
+
+    - name: Create LXC image artifact by archiving rootfs on host
+      command:
+        cmd: "tar --exclude='./dev' --exclude='./dev/*' -czvf /tmp/{{ lxc_image_artifact_name }} -C {{ working_rootfs_dir }} ."
+      args:
+        creates: /tmp/{{ lxc_image_artifact_name }}
+
+    - name: Move artifact to destination on host
+      command:
+        cmd: "mv /tmp/{{ lxc_image_artifact_name }} {{ lxc_template_dir }}"
+
+    - name: Cleanup temporary artifact on host
+      file:
+        path: /tmp/{{ lxc_image_artifact_name }}
+        state: absent
+
+    - name: Cleanup LXC container root filesystem on host
+      ignore_errors: yes
+      when: lxc_dir_check.stat.exists
+      command:
+        cmd: "rm -rf {{ working_lxc_dir }}"
+
+    - name: Display LXC image artifact name
+      debug:
+        msg: "LXC Image Artifact Name: {{ lxc_image_artifact_name }}"
+
+
+
+
+

lxc/templates/authorized_keys.j2

@@ -0,0 +1 @@
+ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDKfPOnXImpSaSDzHLtlv6tenIdWhZEA15WWbkNCkM0u8q8eefJYMEkdT0F+46rilxjVnB0wmWcVUFmU8uT2YqfUczYb185LDKeSC5qQI/J+XibxeZNkE7swcTy9nj/dRqO2OpKPJnWUTQAUrgY7hmZYtOx8cjuQUvuRA1yBi5AuGFrHG0NKLr1h7AriLhkTv1xYAQ0W9wrG3hw882oLf1cLSAKWWhJX0XrlqKJQ5bqmt8yW3JO+Twdm2KDbxkR3IiHgpyfe9/zf5STMBejP2gXG0vpbRoVM9X10BtWDo22JudPEt2Wdy7qe7UqZLlNjHaYkUVTtN+JEf4ZoaBUf98t dfritz@desktops-mbp.corp.netflix.com

lxc/templates/bash.bashrc.j2

@@ -0,0 +1,51 @@
+#
+# Add other environments, when available
+#
+if [ -f /fritzlab/environment ]; then
+    source /fritzlab/environment
+fi
+if [ -f /etc/os-release ]; then
+    source /etc/os-release
+fi
+
+#
+# Customize the Bash prompt with color-coded sections and fallback defaults.
+#
+
+# colors
+RED="\[\033[1;31m\]"     # Bright red
+GREEN="\[\033[1;32m\]"   # Bright green
+YELLOW="\[\033[1;33m\]"  # Bright yellow
+BLUE="\[\033[1;34m\]"    # Bright blue
+RESET="\[\033[0m\]"      # Reset to default color
+
+# prompt parts
+if [ -n "${ID}" ] && [ -n "${VERSION_ID}" ]; then
+    SYSTEM="${ID}${VERSION_ID}"
+else
+    SYSTEM=$(uname -r)
+fi
+REGION="${FRITZLAB_REGION:-unknown}"
+APP="${FRITZLAB_APP_NAME:-unknown}"
+HOSTNAME=$(hostname)
+
+# prompt format
+export PS1="${RED}${SYSTEM}${RESET} ${GREEN}${APP}${RESET} ${YELLOW}${REGION}${RESET} ${BLUE}${HOSTNAME}${RESET} \n(\u) \w \$ "
+
+#
+# Set the history size and control options.
+#
+export HISTSIZE=1000
+export HISTFILESIZE=2000
+export HISTCONTROL=ignoredups:erasedups
+shopt -s histappend
+
+#
+# Set the default editor.
+#
+export TERM=xterm-256color
+
+#
+# bash aliases
+#
+alias ll="ls -lFah"

lxc/templates/digrc.j2

@@ -0,0 +1 @@
+-t aaaa

lxc/templates/environment.j2

@@ -0,0 +1,4 @@
+FRITZLAB_IMAGE_DATE={{ timestamp }}
+FRITZLAB_IMAGE_OS_NAME={{ debian_os }}
+FRITZLAB_IMAGE_OS_VERSION={{ debian_version }}
+FRITZLAB_IMAGE_TYPE=LXC

lxc/templates/locale.j2

@@ -0,0 +1 @@
+LANG=C.UTF-8

lxc/templates/motd.j2

@@ -0,0 +1,6 @@
+
+**************************************************************
+* WARNING: Unauthorized access to this system is prohibited. *
+* Only intended and authorized personnel are permitted.      *
+* All activity is monitored and logged.                      *
+**************************************************************

lxc/templates/sshd_banner.j2

@@ -0,0 +1,6 @@
+
+**************************************************************
+* WARNING: Unauthorized access to this system is prohibited. *
+* Only intended and authorized personnel are permitted.      *
+* All activity is monitored and logged.                      *
+**************************************************************

lxc/templates/sshd_config.j2

@@ -0,0 +1,3 @@
+PermitRootLogin yes
+PasswordAuthentication yes
+Banner /etc/ssh/banner.txt

lxc/templates/sysctl.j2

@@ -0,0 +1,2 @@
+net.ipv6.conf.all.accept_dad=0
+net.ipv6.conf.default.accept_dad=0