Add splunk_skip_repo option to ansible (open-telemetry#2249)

* Add sfx_skip_repo option to ansible

* rename sfx_skip_repo to splunk_skip_repo, add the when clause to debian installs as well, add more documentation

Co-authored-by: asavenko <asavenko@redhat.com>
Co-authored-by: Antoine Toulme <atoulme@splunk.com>

deployments/ansible/roles/collector/README.md

@@ -123,6 +123,10 @@ $> ansible-playbook playbook.yaml -e start_service=false
 - `splunk_ballast_size_mib`: Memory ballast size in MiB that will be set to the Splunk 
   OTel Collector. (**default:** 1/3 of `splunk_memory_total_mib`)
 
+- `splunk_skip_repo` (Linux only): If installing the collector from a custom or self-hosted
+  apt/yum repo, set to `true` to skip the installation of the default repo
+  (**default:** `false`)
+
 - `start_service`: Whether to restart the services installed by the playbook. (**default:** true)
 
 #### Windows Proxy

deployments/ansible/roles/collector/defaults/main.yml

@@ -35,6 +35,9 @@ install_fluentd: true
 # Whether to start the services installed by the role (splunk-otel-collector and td-agent).
 start_service: true
 
+# Disable setting the official Splunk Debian or RPM repository.
+splunk_skip_repo: false
+
 # Explicitly set version of td-agent,
 # By default: 3.7.1 for Debian stretch and 4.3.2 for other distros.
 td_agent_version: ""

deployments/ansible/roles/collector/tasks/apt_install_otel_collector.yml

@@ -19,6 +19,7 @@
     repo: "deb {{ splunk_repo_base_url }}/otel-collector-deb release main"
     filename: splunk-otel-collector.list
     state: present
+  when: not (splunk_skip_repo | bool)
 
 - name: Install Splunk OpenTelemetry Collector via apt package manager
   ansible.builtin.apt:

deployments/ansible/roles/collector/tasks/yum_install_otel_collector.yml

@@ -15,6 +15,7 @@
     gpgkey: "{{ splunk_repo_base_url }}/otel-collector-rpm/splunk-B3CD4420.pub"
     gpgcheck: yes
     enabled: yes
+  when: not (splunk_skip_repo | bool)
 
 - name: Install Splunk OpenTelemetry Collector via yum package manager
   ansible.builtin.yum: