Add Installation Guide with Ansible

Provide additional installation options by using Ansible with https://github.com/alvistack/ansible-role-podman from source code.

Fixes containers/podman#5773

Signed-off-by: Wong Hoi Sing Edison <[email protected]>

getting-started/installation.md

@@ -545,6 +545,43 @@ Note that Podman does not officially support device-mapper. Thus, the `exclude_g
 
 This project is using [go modules](https://github.com/golang/go/wiki/Modules) for dependency management.  If the CI is complaining about a pull request leaving behind an unclean state, it is very likely right about it.  After changing dependencies, make sure to run `make vendor` to synchronize the code with the go module and repopulate the `./vendor` directory.
 
+### Static build
+
+It is possible to build a statically linked binary of podman by using the
+officially provided
+[nix](https://nixos.org/nixos/packages.html?attr=podman-unwrapped&channel=nixpkgs-unstable&query=podman)
+package and the derivation of it [within this repository](nix/). The
+builds are completely reproducible and will create a x86\_64/amd64
+stripped ELF binary for [glibc](https://www.gnu.org/software/libc).
+
+#### Nix
+
+To build the binaries by locally install the nix package manager:
+
+``` shell
+curl -L https://nixos.org/nix/install | sh
+git clone https://github.com/containers/libpod.git && cd libpod
+nix build -f nix/
+./result/bin/podman --version
+```
+
+#### Ansible
+
+An [Ansible Role](https://github.com/alvistack/ansible-role-podman) is
+also available to automate the installation of above statically linked
+binary on its supported OS:
+
+``` bash
+sudo su -
+mkdir -p ~/.ansible/roles
+cd ~/.ansible/roles
+git clone https://github.com/alvistack/ansible-role-podman.git podman
+cd ~/.ansible/roles/podman
+pip3 install --upgrade --ignore-installed --requirement requirements.txt
+molecule converge
+molecule verify
+```
+
 ## Configuration files
 
 ### registries.conf