feat: add shared bins volume for uv and cobbler-enc (#61)

- Add puppet-shared-bins PVC (10GB) for shared binaries
- Mount /opt/bin in both compiler and master deployments
- Add init container to install uv binary and cobbler script to shared volume
- Update cobbler-enc to use absolute path and uv cache directory
- Configure puppet.conf to reference cobbler-enc from /opt/bin

Reviewed-on: #61

apps/base/puppet/deployment_puppetserver-compiler.yaml

@@ -94,6 +94,8 @@ spec:
         - mountPath: /var/lib/puppet/keys/
           name: eyaml-keys
           readOnly: true
+        - mountPath: /opt/bin/
+          name: puppet-shared-bins
       initContainers:
       - name: copy-configmaps
         image: busybox:1.35
@@ -107,8 +109,6 @@ spec:
           cp /configmaps/puppet.conf /etc/puppetlabs/puppet/puppet.conf
           cp /configmaps/puppetdb.conf /etc/puppetlabs/puppet/puppetdb.conf
           cp /configmaps/autosign.conf /etc/puppetlabs/puppet/autosign.conf
-          cp /configmaps/cobbler-enc /etc/puppetlabs/puppet/cobbler-enc
-          chmod +x /etc/puppetlabs/puppet/cobbler-enc
           echo "Configmap files copied successfully"
         volumeMounts:
         - mountPath: /etc/puppetlabs/puppet/
@@ -122,9 +122,6 @@ spec:
         - mountPath: /configmaps/autosign.conf
           name: compiler-autosign-conf
           subPath: autosign.conf
-        - mountPath: /configmaps/cobbler-enc
-          name: puppet-cobbler-enc
-          subPath: cobbler-enc
       - args:
         - mkdir -p /etc/puppetlabs/puppet/eyaml/keys;
           mkdir -p /etc/puppetlabs/code/environments;
@@ -175,6 +172,35 @@ spec:
           name: puppet-code-volume
         - mountPath: /etc/puppetlabs/puppet/
           name: puppet-puppet-volume
+      - name: setup-shared-bins
+        image: git.unkin.net/unkin/almalinux9-base:20260308
+        command:
+        - sh
+        - -c
+        args:
+        - |
+          echo "Setting up shared binaries..."
+          mkdir -p /opt/bin
+          mkdir -p /opt/bin/.cache/uv
+
+          # Copy cobbler to shared bin volume
+          cp /configmaps/cobbler-enc /opt/bin/cobbler-enc
+          chmod +x /opt/bin/cobbler-enc
+
+          # Install uv to shared bin volume
+          cd /tmp
+          wget -O uv-x86_64-unknown-linux-gnu.tar.gz https://artifactapi.k8s.syd1.au.unkin.net/api/v1/remote/github/astral-sh/uv/releases/download/0.9.20/uv-x86_64-unknown-linux-gnu.tar.gz
+          tar xf uv-x86_64-unknown-linux-gnu.tar.gz
+          cp uv-x86_64-unknown-linux-gnu/uv /opt/bin/uv
+          chmod +x /opt/bin/uv
+
+          echo "Shared binaries setup completed"
+        volumeMounts:
+        - mountPath: /opt/bin/
+          name: puppet-shared-bins
+        - mountPath: /configmaps/cobbler-enc
+          name: puppet-cobbler-enc
+          subPath: cobbler-enc
       securityContext:
         fsGroup: 999
       volumes:
@@ -200,5 +226,8 @@ spec:
       - name: puppet-cobbler-enc
         configMap:
           name: puppet-cobbler-enc
+      - name: puppet-shared-bins
+        persistentVolumeClaim:
+          claimName: puppet-shared-bins
   strategy:
     type: RollingUpdate