Inject installation envs for install script (#433)

Signed-off-by: Derek Nola <derek.nola@suse.com>

Author: dereknola

inventory-sample.yml

@@ -26,6 +26,7 @@ k3s_cluster:
     # Optional vars
     # extra_server_args: ""
     # extra_agent_args: ""
+    # extra_install_envs: { 'INSTALL_K3S_SKIP_SELINUX_RPM': 'true' }
     # cluster_context: k3s-ansible
     # api_port: 6443
     # k3s_server_location: /var/lib/rancher/k3s

roles/k3s_agent/defaults/main.yml

@@ -4,3 +4,4 @@ k3s_server_location: "/var/lib/rancher/k3s"  # noqa var-naming[no-role-prefix]
 systemd_dir: "/etc/systemd/system"  # noqa var-naming[no-role-prefix]
 api_port: 6443  # noqa var-naming[no-role-prefix]
 extra_agent_args: "" # noqa var-naming[no-role-prefix]
+extra_install_envs: {} # noqa var-naming[no-role-prefix]

roles/k3s_agent/tasks/main.yml

@@ -27,12 +27,18 @@
         mode: "0755"
 
     - name: Download K3s binary
-      ansible.builtin.command:
+      # For some reason, ansible-lint thinks using enviroment with command is an error
+      # even though its valid https://ansible.readthedocs.io/projects/lint/rules/inline-env-var/#correct-code
+      ansible.builtin.command: # noqa inline-env-var
         cmd: /usr/local/bin/k3s-install.sh
-      environment:
-        INSTALL_K3S_SKIP_START: "true"
-        INSTALL_K3S_VERSION: "{{ k3s_version }}"
-        INSTALL_K3S_EXEC: "agent"
+      # Ensures that extra_install_envs are combined with required env vars
+      environment: >-
+        {{ extra_install_envs | combine({
+          "INSTALL_K3S_SKIP_START": "true",
+          "INSTALL_K3S_SYSTEMD_DIR": systemd_dir,
+          "INSTALL_K3S_VERSION": k3s_version,
+          "INSTALL_K3S_EXEC": "agent"
+        }) }}
       changed_when: true
 
 - name: Setup optional config file

roles/k3s_server/defaults/main.yml

@@ -9,3 +9,4 @@ server_group: server  # noqa var-naming[no-role-prefix]
 agent_group: agent  # noqa var-naming[no-role-prefix]
 use_external_database: false # noqa var-naming[no-role-prefix]
 extra_server_args: "" # noqa var-naming[no-role-prefix]
+extra_install_envs: {} # noqa var-naming[no-role-prefix]

roles/k3s_server/tasks/main.yml

@@ -27,11 +27,16 @@
         mode: "0755"
 
     - name: Download K3s binary
-      ansible.builtin.command:
+      # For some reason, ansible-lint thinks using enviroment with command is an error
+      # even though its valid https://ansible.readthedocs.io/projects/lint/rules/inline-env-var/#correct-code
+      ansible.builtin.command: # noqa inline-env-var
         cmd: /usr/local/bin/k3s-install.sh
-      environment:
-        INSTALL_K3S_SKIP_START: "true"
-        INSTALL_K3S_VERSION: "{{ k3s_version }}"
+      # Ensures that extra_install_envs are combined with required env vars
+      environment: >-
+        {{ extra_install_envs | combine({
+          "INSTALL_K3S_SKIP_START": "true",
+          "INSTALL_K3S_VERSION": k3s_version,
+        }) }}
       changed_when: true
 
 - name: Add K3s autocomplete to user bashrc

roles/k3s_upgrade/defaults/main.yml

@@ -2,3 +2,4 @@
 systemd_dir: /etc/systemd/system  # noqa var-naming[no-role-prefix]
 server_group: server  # noqa var-naming[no-role-prefix]
 agent_group: agent  # noqa var-naming[no-role-prefix]
+extra_install_envs: {} # noqa var-naming[no-role-prefix]

roles/k3s_upgrade/tasks/main.yml

@@ -33,11 +33,15 @@
       loop: "{{ k3s_service_files.files }}"
 
     - name: Install new K3s Version
-      ansible.builtin.command:
+      # For some reason, ansible-lint thinks using enviroment with command is an error
+      # even though its valid https://ansible.readthedocs.io/projects/lint/rules/inline-env-var/#correct-code
+      ansible.builtin.command: # noqa inline-env-var
         cmd: /usr/local/bin/k3s-install.sh
-      environment:
-        INSTALL_K3S_SKIP_START: "true"
-        INSTALL_K3S_VERSION: "{{ k3s_version }}"
+        environment: >-
+          {{ extra_install_envs | combine({
+            "INSTALL_K3S_SKIP_START": "true",
+            "INSTALL_K3S_VERSION": k3s_version,
+          }) }}
       changed_when: true
 
     - name: Restore K3s service