installargocd.yml

- name: Setup Argo CD with k3s
  hosts: argocd
  become: yes
  vars:
    user_home: "/home/ubuntu"

  tasks:
    - name: Update apt cache
      apt:
        update_cache: yes
        force_apt_get: yes

    - name: Install k3s
      ansible.builtin.shell:
        cmd: "curl -sfL https://get.k3s.io | INSTALL_K3S_EXEC='server' sh -s - --disable traefik"
        warn: no

    - name: Create .kube directory
      file:
        path: "{{ user_home }}/.kube"
        state: directory
        owner: ubuntu
        group: ubuntu

    - name: Copy k3s.yaml to user's kube config
      copy:
        src: /etc/rancher/k3s/k3s.yaml
        dest: "{{ user_home }}/.kube/config"
        remote_src: yes
        owner: ubuntu
        group: ubuntu
        mode: '0400'

    - name: Set KUBECONFIG environment variable
      ansible.builtin.lineinfile:
        path: "{{ user_home }}/.bashrc"
        line: 'export KUBECONFIG={{ user_home }}/.kube/config'
        create: yes

    - name: Create namespace for Argo CD
      command:
        cmd: kubectl create namespace argocd
        warn: no

    - name: Deploy Argo CD
      ansible.builtin.uri:
        url: https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml
        method: GET
        return_content: yes
      register: argocd_manifest

    - name: Apply Argo CD manifest
      ansible.builtin.copy:
        content: "{{ argocd_manifest.content }}"
        dest: "/tmp/argocd_install.yaml"

    - name: Apply Argo CD manifest with kubectl
      ansible.builtin.command:
        cmd: kubectl apply -n argocd -f /tmp/argocd_install.yaml
        warn: no

    - name: Patch Argo CD service to NodePort
      ansible.builtin.shell:
        cmd: kubectl patch svc argocd-server -n argocd -p '{"spec":{"type":"NodePort"}}'
        warn: no

    - name: Patch ConfigMap
      ansible.builtin.shell:
        cmd: kubectl patch configmap argocd-cmd-params-cm --type merge -n argocd -p '{"data":{"server.insecure":"true"}}'
        warn: no

    - name: Patch Secret
      ansible.builtin.shell:
        cmd: kubectl patch secret argocd-secret -n argocd --type merge -p '{"stringData":{"webhook.github.secret":"somesecret"}}'
        warn: no

    - name: Set architecture variable
      set_fact:
        arch: "{{ ansible_architecture }}"
      when: ansible_architecture in ['x86_64', 'aarch64']

    - name: Convert architecture for Argo CD compatibility
      set_fact:
        arch: "amd64"
      when: arch == "x86_64"

    - name: Convert architecture for Argo CD compatibility
      set_fact:
        arch: "arm64"
      when: arch == "aarch64"

    - name: Fail for unsupported architectures
      ansible.builtin.fail:
        msg: "Unsupported architecture: {{ ansible_architecture }}"
      when: ansible_architecture not in ['x86_64', 'aarch64']

    - name: Get the latest Argo CD version
      ansible.builtin.shell:
        cmd: "curl -s https://api.github.com/repos/argoproj/argo-cd/releases/latest | grep -o '\"tag_name\": \".*\"' | sed 's/\"tag_name\": \"//;s/\"//' "
      register: argocd_version
      changed_when: false

    - name: Download Argo CD CLI
      ansible.builtin.get_url:
        url: "https://github.com/argoproj/argo-cd/releases/latest/download/argocd-linux-{{ arch }}"
        dest: "/tmp/argocd-linux-{{ arch }}"
        mode: '0555'

    - name: Install Argo CD CLI
      ansible.builtin.shell:
        cmd: "sudo install -m 555 /tmp/argocd-linux-{{ arch }} /usr/local/bin/argocd"
      when: argocd_version.stdout is defined

    - name: Clean up downloaded file
      ansible.builtin.file:
        path: "/tmp/argocd-linux-{{ arch }}"
        state: absent
    
    - name: Reload deployment
      ansible.builtin.command:
        cmd: kubectl rollout restart deployment argocd-server -n argocd
        warn: no