dt-oneagent-install-linux.yml

# dynatrace oneagent install on linux
# hosts_group -> inventory group of hosts to execute playbook on
# dt_api_endpoint -> dynatrace environment api endpoint (include trailing /)
# dt_api_token -> dynatrace api install token
# dt_host_group -> dynatrace host group name
# dt_app_log_content_access -> flag to enable or disable log analytics on host (0 or 1)
# dt_infra_only -> flag to set cloud infrastructure monitoring mode on host (0 or 1)
---
-
  hosts: "{{ hosts_group }}"
  name: "dynatrace oneagent install on linux"
  tasks:
    # Check the OS architecture bitness
    -
      name: "check OS architecture"
      debug:
        var: ansible_architecture
      when: ansible_architecture is defined
    # Validate sudo access 
    -
      name: "validate ansible execution on linux with sudo access"
      shell:
        cmd: ls /opt
      become: yes
      changed_when: False
    # Check the latest available OneAgent version
    -
      name: "get latest oneagent version from dynatrace environment api"
      local_action:
        module: uri
        url: "{{ dt_api_endpoint }}deployment/installer/agent/unix/default/latest/metainfo?flavor=default&arch=all&bitness=all"
        headers:
          accept: application/json
          Authorization: Api-Token {{ dt_api_token }}
      register: latest_version
    -
      name: "set oneagent latest version fact (dt_latest_version)"
      set_fact:
        dt_latest_version: "{{ latest_version.json.latestAgentVersion }}"
      when: latest_version is defined
    # Check if OneAgent is already installed, if yes then check installed version
    -
      name: "check if oneagent is already installed"
      stat:
        path: /opt/dynatrace/oneagent/agent/lib64/liboneagentos.so
      register: installed
    -
      name: "check installed oneagent version"
      shell: "/opt/dynatrace/oneagent/agent/tools/oneagentctl --version"
      become: yes
      register: current_version
      when: installed.stat.exists == True
      changed_when: False
    -
      name: "set oneagent current version fact (dt_current_version)"
      set_fact:
        dt_current_version: "{{lookup('flattened', current_version.stdout_lines)}}"
      when: installed.stat.exists == True and current_version is defined
    -
      name: "debug output current version"
      debug:
        var: dt_current_version
      when: installed.stat.exists == True and current_version is defined
    -
      name: "debug output latest version"
      debug:
        var: dt_latest_version
      when: dt_latest_version is defined
    # Download OneAgent install file if installation or upgrade is required
    -
      name: "download oneagent install file"
      get_url:
         # on the target systems, ensure that python is compiled with SSL support
         # python -c "import ssl; print(ssl.OPENSSL_VERSION)"
         #url: "{{ dt_api_endpoint }}deployment/installer/agent/unix/default/latest?Api-Token={{ dt_api_token }}&arch=x86&flavor=default" ## optionally pass Api-Token as a parameter instead of a header
         url: "{{ dt_api_endpoint }}deployment/installer/agent/unix/default/latest?arch=x86&flavor=default" ## optionally pass Api-Token as a header instead of a parameter
         headers: "Authorization: Api-Token {{ dt_api_token }} " ## optionally pass Api-Token as a header instead of a parameter
         dest: /tmp/dynatrace-oneagent-linux-latest.sh
         mode: '0777'
         #validate_certs: false
      when: installed.stat.exists != True or dt_current_version != dt_latest_version
      changed_when: False
    # Install OneAgent
    -
      name: "install: execute oneagent install file with root privileges"
      shell: "sh /tmp/dynatrace-oneagent-linux-latest.sh HOST_GROUP={{ dt_host_group }} APP_LOG_CONTENT_ACCESS={{ dt_app_log_content_access }}{% if dt_infra_only is defined %} INFRA_ONLY={{ dt_infra_only }}{% endif %}"
      become: yes
      when: ansible_architecture != "armv7l" and installed.stat.exists == False
    # Update OneAgent
    -
      name: "update: execute oneagent install file with root privileges"
      shell: "sh /tmp/dynatrace-oneagent-linux-latest.sh HOST_GROUP={{ dt_host_group }} APP_LOG_CONTENT_ACCESS={{ dt_app_log_content_access }}{% if dt_infra_only is defined %} INFRA_ONLY={{ dt_infra_only }}{% endif %}"
      become: yes
      when: ansible_architecture != "armv7l" and installed.stat.exists == True and dt_current_version != dt_latest_version
    # Validate OneAgent is installed
    -
      name: "validate oneagent installation"
      stat:
        path: /opt/dynatrace/oneagent/agent/lib64/liboneagentos.so
      register: installed
      failed_when: installed.stat.exists != True
    # Check that the Host Group is correct, if not then correct it
    -
      name: "check host group is correct"
      shell: "/opt/dynatrace/oneagent/agent/tools/oneagentctl --get-host-group"
      become: yes
      register: current_host_group
      changed_when: False
    -
      name: "set current host group fact (dt_current_host_group)"
      set_fact:
        dt_current_host_group: "{{lookup('flattened', current_host_group.stdout_lines)}}"
      when: current_host_group is defined
    -
      name: "update/correct host group setting if not correct"
      shell: "service oneagent stop; /opt/dynatrace/oneagent/agent/tools/oneagentctl --set-host-group={{ dt_host_group }}; service oneagent start"
      become: yes
      when: dt_current_host_group != dt_host_group and dt_host_group is defined and dt_current_host_group is defined