[CODE] caddy, cronmail: only run, if update needed

defaults/main.yml

@@ -3,6 +3,8 @@
 
 borgbackup_ssh_id: "/home/{{ ansible_user_id }}/.ssh/id_ed25519"
 
+caddy_cachedir: "/home/{{ ansible_user_id }}/.ansbl-caddy-cache"
+
 telegraf_interval: "300s"
 telegraf_docker_file: "telegraf-docker.conf"
 telegraf_snmp_file: "telegraf-SNMP.conf"

tasks/caddy-install.yml

@@ -6,48 +6,63 @@
   shell: lsb_release -is
   register: lsb_id
 
-- name: caddyserver - Stop caddy
+- name: caddyserver - Create cache directory
+  file:
+    path: "{{ caddy_cachedir }}"
+    state: directory
+
+- name: caddyserver - Get all caddy releases
+  get_url:
+    url: https://api.github.com/repos/caddyserver/caddy/git/refs/tags
+    dest: "{{ caddy_cachedir }}/releases.txt"
+    force: yes
+  register: caddy_releases_cache
+
+- name: caddyserver - Install or update
+  block:
+    - name: caddyserver - Make temp download directory
+      file:
+        path: "{{ caddy_cachedir }}/tmp"
+        state: directory
+
+    - name: caddyserver - Download caddy webserver (amd64)
+      get_url:
+        url: "https://caddyserver.com/download/linux/amd64?plugins=http.ratelimit&license=personal"
+        dest: "{{ caddy_cachedir }}/tmp/caddy.tar.gz"
+      when: lsb_id.stdout != "Raspbian"
+    - name: caddyserver - Download caddy webserver (raspberry pi)
+      get_url:
+        url: "https://caddyserver.com/download/linux/arm7?plugins=http.ratelimit&license=personal"
+        dest: "{{ caddy_cachedir }}/tmp/caddy.tar.gz"
+      when: lsb_id.stdout == "Raspbian"
+
+    - name: caddyserver - Stop caddy
       become: yes
       service:
         name: caddy
         state: stopped
       ignore_errors: yes
 
-- name: caddyserver - Make temp download directory
-  file:
-    path: /tmp/caddy
-    state: directory
-
-- name: caddyserver - Download caddy webserver (amd64)
-  get_url:
-    url: "https://caddyserver.com/download/linux/amd64?plugins=http.ratelimit&license=personal"
-    dest: /tmp/caddy/caddy.tar.gz
-  when: lsb_id.stdout != "Raspbian"
-- name: caddyserver - Download caddy webserver (raspberry pi)
-  get_url:
-    url: "https://caddyserver.com/download/linux/arm7?plugins=http.ratelimit&license=personal"
-    dest: /tmp/caddy/caddy.tar.gz
-  when: lsb_id.stdout == "Raspbian"
-
-- name: caddyserver - Extract caddy
-  shell: "cd /tmp/caddy && tar -xvf caddy.tar.gz"
-- name: caddyserver - Copy caddy to a PATH location
+    - name: caddyserver - Extract caddy
+      shell: "cd {{ caddy_cachedir }}/tmp && tar -xvf caddy.tar.gz"
+    - name: caddyserver - Copy caddy to a PATH location
       become: yes
-  shell: "cp /tmp/caddy/caddy /usr/local/bin"
-- name: caddyserver - Clean up download files
+      shell: "cp {{ caddy_cachedir }}/tmp/caddy /usr/local/bin"
+    - name: caddyserver - Clean up download files
       become: yes
       file:
-    path: /tmp/caddy
+        path: "{{ caddy_cachedir }}/tmp"
         state: absent
-- name: caddyserver - Install caddy APT dependencies
+    - name: caddyserver - Install caddy APT dependencies
       become: yes
       apt:
         name: libcap2-bin
         state: present
-- name: caddyserver - Give caddy port binding capabilities
+    - name: caddyserver - Give caddy port binding capabilities
       become: yes
       shell: "setcap cap_net_bind_service=+ep /usr/local/bin/caddy"
       # capabilities:
       #   path: "{{ caddy_bin }}"
       #   capability: cap_net_bind_service+ep
       #   state: present
+  when: caddy_releases_cache.changed

tasks/cronmails.yml

@@ -21,14 +21,17 @@
   copy:
     src: "{{ role_path }}/files/exim4.conf.template"
     dest: /etc/exim4/exim4.conf.template
+  register: cronmails_conftmp_update
 - name: cronmails - Copy exim4 config file
   become: yes
   template:
     src: "{{ role_path }}/templates/update-exim4.conf.conf"
     dest: /etc/exim4/update-exim4.conf.conf
+  register: cronmails_conffile_update
 - name: cronmails - Run update-exim4.conf
   become: yes
   shell: "update-exim4.conf"
+  when: cronmails_conftmp_update.changed or cronmails_conffile_update.changed
 - name: cronmails - Enable and start exim4
   become: yes
   service:

tasks/telegraf.yml

@@ -11,7 +11,7 @@
   apt_key:
     url: https://repos.influxdata.com/influxdb.key
     state: present
-- name: telegraf - Add Telegraf repo
+- name: telegraf - Add telegraf repo
   become: yes
   apt_repository:
     repo: "deb https://repos.influxdata.com/debian {{ ansible_distribution_release }} stable"