feat(helm): add tpl support to extraContainers and extraInitContainers

Wrap toYaml with tpl in deployment and migration job templates so
users can reference Helm values (e.g. {{ .Values.image.repository }})
inside extraContainers and extraInitContainers definitions.

deploy/charts/litellm-helm/templates/deployment.yaml

@@ -47,7 +47,7 @@ spec:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       {{- with .Values.extraInitContainers }}
       initContainers:
-        {{- toYaml . | nindent 8 }}
+        {{- tpl (toYaml .) $ | nindent 8 }}
       {{- end }}
       containers:
         - name: {{ include "litellm.name" . }}
@@ -212,7 +212,7 @@ spec:
             {{- toYaml . | nindent 12 }}
           {{- end }}
       {{- with .Values.extraContainers }}
-        {{- toYaml . | nindent 8 }}
+        {{- tpl (toYaml .) $ | nindent 8 }}
       {{- end }}
       volumes:
         {{ if .Values.securityContext.readOnlyRootFilesystem }}

deploy/charts/litellm-helm/templates/migrations-job.yaml

@@ -37,7 +37,7 @@ spec:
       serviceAccountName: {{ include "litellm.migrationServiceAccountName" . }}
       {{- with .Values.migrationJob.extraInitContainers }}
       initContainers:
-        {{- toYaml . | nindent 8 }}
+        {{- tpl (toYaml .) $ | nindent 8 }}
       {{- end }} 
       containers:
         - name: prisma-migrations
@@ -96,7 +96,7 @@ spec:
             {{- toYaml . | nindent 12 }}
           {{- end }}
       {{- with .Values.migrationJob.extraContainers }}
-        {{- toYaml . | nindent 8 }}
+        {{- tpl (toYaml .) $ | nindent 8 }}
       {{- end }}
       {{- with .Values.volumes }}
       volumes:

deploy/charts/litellm-helm/tests/deployment_tests.yaml

@@ -319,3 +319,61 @@ tests:
     asserts:
       - notExists:
           path: spec.minReadySeconds
+  - it: should work with extraInitContainers
+    template: deployment.yaml
+    set:
+      extraInitContainers:
+        - name: init-test
+          image: busybox:latest
+          command: ["echo", "hello"]
+    asserts:
+      - contains:
+          path: spec.template.spec.initContainers
+          content:
+            name: init-test
+            image: busybox:latest
+            command: ["echo", "hello"]
+  - it: should support tpl in extraInitContainers
+    template: deployment.yaml
+    set:
+      image:
+        repository: ghcr.io/berriai/litellm-database
+        tag: test
+      extraInitContainers:
+        - name: init-tpl
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          command: ["echo", "hello"]
+    asserts:
+      - contains:
+          path: spec.template.spec.initContainers
+          content:
+            name: init-tpl
+            image: "ghcr.io/berriai/litellm-database:test"
+            command: ["echo", "hello"]
+  - it: should work with extraContainers
+    template: deployment.yaml
+    set:
+      extraContainers:
+        - name: sidecar
+          image: busybox:latest
+    asserts:
+      - contains:
+          path: spec.template.spec.containers
+          content:
+            name: sidecar
+            image: busybox:latest
+  - it: should support tpl in extraContainers
+    template: deployment.yaml
+    set:
+      image:
+        repository: ghcr.io/berriai/litellm-database
+        tag: test
+      extraContainers:
+        - name: sidecar-tpl
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+    asserts:
+      - contains:
+          path: spec.template.spec.containers
+          content:
+            name: sidecar-tpl
+            image: "ghcr.io/berriai/litellm-database:test"

deploy/charts/litellm-helm/tests/migrations-job_tests.yaml

@@ -188,3 +188,69 @@ tests:
       - equal:
           path: spec.template.spec.serviceAccountName
           value: pre-existing-sa
+  - it: should work with extraInitContainers
+    template: migrations-job.yaml
+    set:
+      migrationJob:
+        enabled: true
+        extraInitContainers:
+          - name: init-test
+            image: busybox:latest
+            command: ["echo", "hello"]
+    asserts:
+      - contains:
+          path: spec.template.spec.initContainers
+          content:
+            name: init-test
+            image: busybox:latest
+            command: ["echo", "hello"]
+  - it: should support tpl in extraInitContainers
+    template: migrations-job.yaml
+    set:
+      image:
+        repository: ghcr.io/berriai/litellm-database
+        tag: test
+      migrationJob:
+        enabled: true
+        extraInitContainers:
+          - name: init-tpl
+            image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+            command: ["echo", "hello"]
+    asserts:
+      - contains:
+          path: spec.template.spec.initContainers
+          content:
+            name: init-tpl
+            image: "ghcr.io/berriai/litellm-database:test"
+            command: ["echo", "hello"]
+  - it: should work with extraContainers
+    template: migrations-job.yaml
+    set:
+      migrationJob:
+        enabled: true
+        extraContainers:
+          - name: sidecar
+            image: busybox:latest
+    asserts:
+      - contains:
+          path: spec.template.spec.containers
+          content:
+            name: sidecar
+            image: busybox:latest
+  - it: should support tpl in extraContainers
+    template: migrations-job.yaml
+    set:
+      image:
+        repository: ghcr.io/berriai/litellm-database
+        tag: test
+      migrationJob:
+        enabled: true
+        extraContainers:
+          - name: sidecar-tpl
+            image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+    asserts:
+      - contains:
+          path: spec.template.spec.containers
+          content:
+            name: sidecar-tpl
+            image: "ghcr.io/berriai/litellm-database:test"