update.cf

Table of Contents

$(sys.inputdir)/update.cf is responsible for updating policy from the hub as well as ensuring various core cfenigne components are running.

common bodies

cfengine_update_controls

Prototype: cfengine_update_controls

Implementation:

bundle common cfengine_update_controls
{
  vars:
       "update_def_inputs"
        slist => {
                   "controls/update_def.cf",
                   "controls/update_def_inputs.cf",
                 };

  reports:
    DEBUG|DEBUG_cfengine_update_controls::
      "DEBUG $(this.bundle): update def inputs='$(update_def_inputs)'";
}

agent bundles

cfengine_internal_standalone_self_upgrade

Prototype: cfengine_internal_standalone_self_upgrade

Description: Manage the version of CFEngine that is currently installed. This policy executes a stand alone policy as a sub agent. If systemd is found we assume that it is necessary to escape the current unit via systemd-run.

Implementation:

bundle agent cfengine_internal_standalone_self_upgrade
{
  vars:

      "exec_prefix"
        string => ifelse( isexecutable("/bin/systemd-run"), "/bin/systemd-run --unit=cfengine-upgrade --scope ", # trailing space in commands important
                          isexecutable( "/usr/bin/systemd-run" ), "/usr/bin/systemd-run --unit=cfengine-upgrade --scope ",
                          "");

      "desired_pkg_data_path" -> { "ENT-3592" }
        string => "$(sys.statedir)/MPF/desired-cfengine-package-version.json";

      "desired_pkg_data" -> { "ENT-3592" }
        data => readjson( $(desired_pkg_data_path), inf ),
        if => fileexists( $(desired_pkg_data_path) );

  classes:
      # If we are running the version desired by the self upgrade policy
      "at_desired_version" -> { "ENT-3592" }
        expression => strcmp( "$(desired_pkg_data[version])", "$(sys.cf_version)"  );

      # If we are running the version explicitly defined by the user
      "at_desired_version" -> { "ENT-3592" }
        expression => strcmp( "$(def.cfengine_software_pkg_version)", "$(sys.cf_version)" );

  commands:

    trigger_upgrade.!at_desired_version::

      "$(exec_prefix)$(sys.cf_agent)"
      handle => "standalone_self_upgrade",
      args => '--inform --timestamp --file "$(this.promise_dirname)$(const.dirsep)standalone_self_upgrade.cf" --define trigger_upgrade,update_cf_initiated';

  reports:

    inform_mode|verbose_mode|DEBUG|DEBUG_cfengine_internal_standalone_self_upgrade::
      "Skipped self upgrade because we are running the desired version $(sys.cf_version)" -> { "ENT-3592" }
        if => "at_desired_version";

}

common bodies

control

Prototype: control

Implementation:

body common control
{
      bundlesequence => {
                          "update_def",
                          "u_cfengine_enterprise",
                          @(u_cfengine_enterprise.def),
                          "cfe_internal_dc_workflow",
                          "cfe_internal_update_policy",
                          "cfengine_internal_standalone_self_upgrade",
                          "cfe_internal_update_processes",
                          @(update_def.bundlesequence_end), # Define control_common_update_bundlesequnce_end via augments
      };

      version => "update.cf $(update_def.current_version)";

      inputs => {
                  "cfe_internal/update/lib.cf",
                  "cfe_internal/update/systemd_units.cf",
                  @(cfengine_update_controls.update_def_inputs),
                  "cfe_internal/update/cfe_internal_dc_workflow.cf",
                  "cfe_internal/update/cfe_internal_local_git_remote.cf",
                  "cfe_internal/update/cfe_internal_update_from_repository.cf",
                  "cfe_internal/update/update_policy.cf",
                  "cfe_internal/update/update_processes.cf",
                  @(update_def.augments_inputs)
      };

    any::
        ignore_missing_bundles => "$(update_def.control_common_ignore_missing_bundles)";
        ignore_missing_inputs => "$(update_def.control_common_ignore_missing_inputs)";

}

agent bodies

control

Prototype: control

Implementation:

body agent control
{
      ifelapsed => "1";
      skipidentify => "true";
}

classes bodies

u_kept_successful_command

Prototype: u_kept_successful_command

Description: Set command to "kept" instead of "repaired" if it returns 0

Implementation:

body classes u_kept_successful_command
{
      kept_returncodes => { "0" };
      failed_returncodes => { "1" };
}