Set versions in the motd file (#21)

Signed-off-by: Christian Berendt <[email protected]>

Containerfile

@@ -75,10 +75,15 @@ cp /generics/inventory/* /ansible/inventory.generics
 
 # run preparations
 python3 /src/render-python-requirements.py
+python3 /src/render-versions.py
 
 # install required python packages
 pip install --no-cache-dir -r /requirements.txt
 
+# set ansible version in the motd
+ansible_version=$(python3 -c 'import ansible; print(ansible.release.__version__)')
+sed -i -e "s/ANSIBLE_VERSION/$ansible_version/" /etc/motd
+
 # create required directories
 mkdir -p \
   /interface \

files/src/render-versions.py

@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: Apache-2.0
+
+import os
+
+import jinja2
+import yaml
+
+# get environment parameters
+
+VERSION = os.environ.get("VERSION", "latest")
+
+# load versions files from release repository
+
+with open("/release/%s/base.yml" % VERSION, "rb") as fp:
+    versions = yaml.load(fp, Loader=yaml.FullLoader)
+
+# prepare jinja2 environment
+
+loader = jinja2.FileSystemLoader(searchpath="/src/templates/")
+environment = jinja2.Environment(loader=loader)
+
+# render motd
+
+template = environment.get_template("motd.j2")
+result = template.render({"manager_version": versions["manager_version"]})
+with open("/etc/motd", "w+") as fp:
+    fp.write(result)