Installing packages v23

TPA installs a batch of non-Postgres-related packages early during the deployment, then all Postgres-related packages together, and then packages for optional components separately. This page is about installing packages like sysstat or strace, which have no dependency on Postgres packages.

You can add entries to packages under cluster_vars or a particular instance's vars in config.yml:

cluster_vars:
  packages:
    common:
      - pkg1
      - pkg2
    Debian:
      - debpkg1
    RedHat:
      - rhpkg1
      - rhpkg2
    Ubuntu:
      - ubpkg1
    SLES:
      - slespkg1

In the example above, TPA will install its own list of default_packages and the packages listed under packages.common on every instance, and the remaining distribution-specific packages based on which distribution the instance is running. If any of these packages is not available, the deployment will fail.

Don't list any packages that depend on Postgres; use extra_postgres_packages instead.

Optional packages

You can specify a list of optional_packages to install. They will be installed if they are available, and ignored otherwise. As with the other settings, the common entries apply to every instance, whereas any other lists apply only to instances running the relevant distribution.

optional_packages:
  common:
    - pkg1
    - pkg2
  Debian:
    - debpkg4

Removing packages

You can specify a list of unwanted_packages that should be removed if they are installed.

unwanted_packages:
  common:
    - badpkg1
  Ubuntu:
    - badpkg2