Conversation
Updated deployment configuration for quotes-app.
WalkthroughThe changes upgrade the Docker base image from Java 17 to Java 21 on Alpine Linux and introduce a complete Kubernetes deployment stack, including namespace isolation, pod configuration, service exposure, and a deployment controller with liveness and readiness probes. Changes
Estimated code review effort🎯 2 (Simple) | ⏱️ ~12 minutes
Poem
Pre-merge checks and finishing touches❌ Failed checks (1 inconclusive)
✅ Passed checks (2 passed)
✨ Finishing touches🧪 Generate unit tests (beta)
Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out. Comment |
![coderabbitai[bot]](https://avatars.githubusercontent.com/in/347564?s=60&v=4){kind=small}
There was a problem hiding this comment.
Actionable comments posted: 5
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (5)
Dockerfile(1 hunks)deployment.yml(1 hunks)namespaces.yml(1 hunks)pod.yml(1 hunks)service.yml(1 hunks)
🧰 Additional context used
🪛 Checkov (3.2.334)
pod.yml
[medium] 1-22: Containers should not run with allowPrivilegeEscalation
(CKV_K8S_20)
[medium] 1-22: Minimize the admission of root containers
(CKV_K8S_23)
deployment.yml
[medium] 1-46: Containers should not run with allowPrivilegeEscalation
(CKV_K8S_20)
[medium] 1-46: Minimize the admission of root containers
(CKV_K8S_23)
🔇 Additional comments (4)
namespaces.yml (1)
1-4: LGTM!The namespace definition is minimal and correct. It provides proper isolation for the deployment stack.
service.yml (1)
1-18: LGTM!Service configuration is sound: ClusterIP type, correct port mapping (80→8000), and selectors properly aligned with pod/deployment labels.
Dockerfile (1)
3-3: Base image upgrade is appropriate.Upgrading from OpenJDK 17 to eclipse-temurin:21-jdk-alpine is a good choice for security and long-term support. Eclipse Temurin is a well-maintained OpenJDK distribution.
deployment.yml (1)
29-46: Verify probe endpoint availability and configuration.The deployment defines both liveness and readiness probes targeting
/healthzand/readyendpoints. Confirm that:
- Your Java application (Main.java) exposes these HTTP endpoints on port 8000.
- The probe timing is appropriate: liveness restarts after 3 failures (~15s), readiness removes from service after 1 failure (immediate).
- The
/readyendpoint reflects the true readiness state of your application.Verify that your Main.java application exposes both
/healthzand/readyendpoints on port 8000.
| spec: | ||
| containers: | ||
|
|
||
| - name: quotes-app | ||
| image: quotesapp:latest | ||
| ports: | ||
| - containerPort: 8000 | ||
|
|
||
|
|
||
| livenessProbe: | ||
| httpGet: | ||
| path: /healthz | ||
| port: 8000 | ||
| initialDelaySeconds: 20 | ||
| periodSeconds: 5 | ||
| timeoutSeconds: 5 | ||
| failureThreshold: 3 | ||
|
|
||
|
|
||
| readinessProbe: | ||
| httpGet: | ||
| path: /ready | ||
| port: 8000 | ||
| initialDelaySeconds: 5 | ||
| periodSeconds: 10 | ||
| timeoutSeconds: 3 | ||
| failureThreshold: 1 |
There was a problem hiding this comment.
Add security context to restrict privileges.
The deployment lacks a securityContext to enforce non-root execution and prevent privilege escalation. This is a security and compliance gap flagged by static analysis.
Apply this diff to add a restrictive security context:
spec:
containers:
- name: quotes-app
image: quotesapp:latest
ports:
- containerPort: 8000
+ securityContext:
+ runAsNonRoot: true
+ runAsUser: 1000
+ allowPrivilegeEscalation: falseNote: Ensure your Java application can run as user 1000. If needed, adjust the UID accordingly.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| spec: | |
| containers: | |
| - name: quotes-app | |
| image: quotesapp:latest | |
| ports: | |
| - containerPort: 8000 | |
| livenessProbe: | |
| httpGet: | |
| path: /healthz | |
| port: 8000 | |
| initialDelaySeconds: 20 | |
| periodSeconds: 5 | |
| timeoutSeconds: 5 | |
| failureThreshold: 3 | |
| readinessProbe: | |
| httpGet: | |
| path: /ready | |
| port: 8000 | |
| initialDelaySeconds: 5 | |
| periodSeconds: 10 | |
| timeoutSeconds: 3 | |
| failureThreshold: 1 | |
| spec: | |
| containers: | |
| - name: quotes-app | |
| image: quotesapp:latest | |
| ports: | |
| - containerPort: 8000 | |
| securityContext: | |
| runAsNonRoot: true | |
| runAsUser: 1000 | |
| allowPrivilegeEscalation: false | |
| livenessProbe: | |
| httpGet: | |
| path: /healthz | |
| port: 8000 | |
| initialDelaySeconds: 20 | |
| periodSeconds: 5 | |
| timeoutSeconds: 5 | |
| failureThreshold: 3 | |
| readinessProbe: | |
| httpGet: | |
| path: /ready | |
| port: 8000 | |
| initialDelaySeconds: 5 | |
| periodSeconds: 10 | |
| timeoutSeconds: 3 | |
| failureThreshold: 1 |
🧰 Tools
🪛 Checkov (3.2.334)
[medium] 1-46: Containers should not run with allowPrivilegeEscalation
(CKV_K8S_20)
[medium] 1-46: Minimize the admission of root containers
(CKV_K8S_23)
🤖 Prompt for AI Agents
In deployment.yml around lines 20 to 46, the container spec lacks a
securityContext to enforce non-root execution and prevent privilege escalation;
add a restrictive securityContext for the quotes-app container that sets
runAsUser to 1000 (or an appropriate UID for the Java app), sets runAsNonRoot:
true, disables privilege escalation (allowPrivilegeEscalation: false), drops all
capabilities (capabilities.drop: ["ALL"]), and sets a readonly root filesystem
where possible; keep settings conservative and confirm the Java process runs
correctly as the chosen UID, adjusting UID if needed.
Add resource requests and limits to prevent resource starvation.
Unlike the pod.yml manifest which defines memory and CPU requests/limits, this deployment lacks resource controls. Without these, pods can consume excessive cluster resources and starve other workloads.
Apply this diff to add resource constraints:
spec:
containers:
- name: quotes-app
image: quotesapp:latest
ports:
- containerPort: 8000
+ resources:
+ requests:
+ memory: "256Mi"
+ cpu: "100m"
+ limits:
+ memory: "512Mi"
+ cpu: "500m"
securityContext:
runAsNonRoot: true
runAsUser: 1000
allowPrivilegeEscalation: false(Values suggested to match pod.yml; adjust based on actual application requirements.)
Committable suggestion skipped: line range outside the PR's diff.
🧰 Tools
🪛 Checkov (3.2.334)
[medium] 1-46: Containers should not run with allowPrivilegeEscalation
(CKV_K8S_20)
[medium] 1-46: Minimize the admission of root containers
(CKV_K8S_23)
🤖 Prompt for AI Agents
In deployment.yml around lines 20 to 46, the container spec for "quotes-app"
lacks resource requests and limits; add a resources block under the container
(properly indented) with requests and limits for cpu and memory matching the
values used in pod.yml (or appropriate app-specific values) to prevent resource
starvation; ensure both requests and limits are set and formatted like in
pod.yml so Kubernetes can schedule and throttle the pod correctly.
| LABEL maintainer="trainwithshubham@gmail.com" | ||
| LABEL version="1.0" | ||
| LABEL description="A Java Quotes application" | ||
| # Dockerfile: Line 2 (Change this line) |
There was a problem hiding this comment.
Remove the debug/TODO comment before merging.
Line 2 contains "# Dockerfile: Line 2 (Change this line)", which appears to be a placeholder or debug artifact that should not be in production code.
Apply this diff to remove the debug comment:
-# Dockerfile: Line 2 (Change this line)
-FROM eclipse-temurin:21-jdk-alpine
+FROM eclipse-temurin:21-jdk-alpine📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| # Dockerfile: Line 2 (Change this line) | |
| FROM eclipse-temurin:21-jdk-alpine |
🤖 Prompt for AI Agents
In Dockerfile around line 2, remove the placeholder debug comment "# Dockerfile:
Line 2 (Change this line)" so the file contains only intended Dockerfile
instructions; update the line by deleting that comment and ensure no leftover
TODO/debug comments remain before merging.
| apiVersion: v1 | ||
| kind: Pod | ||
| metadata: | ||
| name: quote-pod | ||
| namespace: quoteapp | ||
| labels: | ||
| app: quotes | ||
| tier: backend | ||
| spec: | ||
| containers: | ||
| - name: quotes-app | ||
| image: quotesapp:latest | ||
| imagePullPolicy: Never | ||
| ports: | ||
| - containerPort: 8000 | ||
| resources: | ||
| requests: | ||
| memory: "256Mi" | ||
| cpu: "100m" | ||
| limits: | ||
| memory: "512Mi" | ||
| cpu: "500m" |
There was a problem hiding this comment.
Add security context to restrict privileges.
The pod lacks a securityContext to enforce non-root execution and prevent privilege escalation. This is a security and compliance gap.
Apply this diff to add a restrictive security context:
spec:
containers:
- name: quotes-app
image: quotesapp:latest
imagePullPolicy: Never
ports:
- containerPort: 8000
+ securityContext:
+ runAsNonRoot: true
+ runAsUser: 1000
+ allowPrivilegeEscalation: false
resources:Note: Ensure that the Java application in the Dockerfile runs correctly as user 1000 (non-root). You may need to adjust the user ID if your application requires a specific UID.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| apiVersion: v1 | |
| kind: Pod | |
| metadata: | |
| name: quote-pod | |
| namespace: quoteapp | |
| labels: | |
| app: quotes | |
| tier: backend | |
| spec: | |
| containers: | |
| - name: quotes-app | |
| image: quotesapp:latest | |
| imagePullPolicy: Never | |
| ports: | |
| - containerPort: 8000 | |
| resources: | |
| requests: | |
| memory: "256Mi" | |
| cpu: "100m" | |
| limits: | |
| memory: "512Mi" | |
| cpu: "500m" | |
| apiVersion: v1 | |
| kind: Pod | |
| metadata: | |
| name: quote-pod | |
| namespace: quoteapp | |
| labels: | |
| app: quotes | |
| tier: backend | |
| spec: | |
| containers: | |
| - name: quotes-app | |
| image: quotesapp:latest | |
| imagePullPolicy: Never | |
| ports: | |
| - containerPort: 8000 | |
| securityContext: | |
| runAsNonRoot: true | |
| runAsUser: 1000 | |
| allowPrivilegeEscalation: false | |
| resources: | |
| requests: | |
| memory: "256Mi" | |
| cpu: "100m" | |
| limits: | |
| memory: "512Mi" | |
| cpu: "500m" |
🧰 Tools
🪛 Checkov (3.2.334)
[medium] 1-22: Containers should not run with allowPrivilegeEscalation
(CKV_K8S_20)
[medium] 1-22: Minimize the admission of root containers
(CKV_K8S_23)
🤖 Prompt for AI Agents
In pod.yml around lines 1-22, the Pod lacks a securityContext to enforce
non-root execution and prevent privilege escalation; add a restrictive Pod-level
securityContext (e.g., runAsUser: 1000, runAsGroup: 1000, fsGroup: 1000,
runAsNonRoot: true) and a container-level securityContext (e.g.,
allowPrivilegeEscalation: false, privileged: false, readOnlyRootFilesystem:
true, seccompProfile if desired) to ensure the container runs as a non-root UID
and cannot escalate privileges; verify and adjust the UID (1000) to match the
Java app’s user in the Docker image if necessary.
| containers: | ||
| - name: quotes-app | ||
| image: quotesapp:latest | ||
| imagePullPolicy: Never |
There was a problem hiding this comment.
Reconsider imagePullPolicy: Never for production use.
This policy requires the image to be pre-loaded on each node, which is fragile and error-prone in production environments. Pods will fail silently if the image isn't already present.
Consider changing to IfNotPresent (default) or Always depending on your deployment strategy.
Apply this diff to use a production-friendly policy:
- imagePullPolicy: Never
+ imagePullPolicy: IfNotPresent📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| imagePullPolicy: Never | |
| imagePullPolicy: IfNotPresent |
🤖 Prompt for AI Agents
In pod.yml around line 13, imagePullPolicy is set to Never which requires
container images to be preloaded on every node and can cause silent pod failures
in production; change the policy to a production-friendly value such as
IfNotPresent (to use local image if available, otherwise pull) or Always (to
always pull the latest image) depending on your deployment workflow, update the
manifest to use the chosen policy, and ensure your CI/CD or node image cache
strategy matches that choice.
1 participant
Summary by CodeRabbit
✏️ Tip: You can customize this high-level summary in your review settings.