feat(hotrod): add hotrod charts #612
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WalkthroughThis pull request introduces a comprehensive Helm chart configuration for the "hotrod" application. The changes include creating multiple configuration files such as Changes
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Signed-off-by: Prashant Shahi <prashant@signoz.io>
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Actionable comments posted: 10
🧹 Nitpick comments (6)
charts/hotrod/templates/_helpers.tpl (3)
33-52: Consider adding recommended Kubernetes labels.While the current labels follow best practices, consider adding these recommended labels for better resource management:
app.kubernetes.io/part-ofapp.kubernetes.io/created-by{{- define "hotrod.labels" -}} helm.sh/chart: {{ include "hotrod.chart" . }} {{ include "hotrod.selectorLabels" . }} {{- if .Chart.AppVersion }} app.kubernetes.io/version: {{ .Chart.AppVersion | quote }} {{- end }} app.kubernetes.io/managed-by: {{ .Release.Service }} +app.kubernetes.io/part-of: {{ .Release.Name }} +app.kubernetes.io/created-by: helm {{- end }}
65-102: Reduce code duplication in locust templates.The locust template functions largely duplicate the hotrod functions. Consider creating a generic template that both can use.
+{{/* +Create a component-specific name +*/}} +{{- define "hotrod.componentName" -}} +{{- $component := .component }} +{{- $context := .context }} +{{- printf "%s-%s" (include "hotrod.fullname" $context) $component | trunc 63 | trimSuffix "-" }} +{{- end }} {{- define "hotrod.locust.fullname" -}} -{{- printf "%s-locust" (include "hotrod.fullname" .) | trunc 63 | trimSuffix "-" }} +{{- include "hotrod.componentName" (dict "context" . "component" "locust") }} {{- end }}
104-124: Improve error message for required secret key.The error message for missing
existingSecretKeycould be more descriptive.{{- define "hotrod.otel.secretKey" }} {{- if .Values.otel.existingSecretName }} -{{- required "otel.existingSecretKey is required when otel.existingSecretName is set" .Values.otel.existingSecretKey }} +{{- required (printf "otel.existingSecretKey must be provided when using existing secret '%s'" .Values.otel.existingSecretName) .Values.otel.existingSecretKey }} {{- else }} {{- print "signoz-ingestion-key" }} {{- end }} {{- end }}charts/hotrod/templates/tests/test-connection.yaml (1)
1-15: Enhance the connection test.While the basic connectivity test is good, consider these improvements:
- Add readiness/liveness probe timeouts
- Test all exposed services (both hotrod and locust)
- Verify the response content
spec: containers: - name: wget image: busybox - command: ['wget'] - args: ['{{ include "hotrod.fullname" . }}:{{ .Values.service.port }}'] + command: ['/bin/sh'] + args: + - -c + - | + wget -T 10 -q -O - {{ include "hotrod.fullname" . }}:{{ .Values.service.port }} | grep -q "Hotrod" + wget -T 10 -q -O - {{ include "hotrod.locust.fullname" . }}:{{ .Values.locust.service.port }} | grep -q "Locust"🧰 Tools
🪛 YAMLlint (1.35.1)
[error] 4-4: syntax error: expected , but found ''
(syntax)
charts/hotrod/templates/service.yaml (1)
11-14: Consider using a more specific port name.While the implementation is correct, consider using a more descriptive port name than "http" to better indicate the service's purpose (e.g., "hotrod-http" or "hotrod-web").
ports: - port: {{ .Values.service.port }} targetPort: http protocol: TCP - name: http + name: hotrod-httpcharts/hotrod/templates/NOTES.txt (1)
20-21: Avoid hard-coded port in port-forward command.The port-forward command uses a hard-coded port 8080, which might conflict with other services. Consider making it configurable.
- echo "Visit http://127.0.0.1:8080 to use your application" - kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT + echo "Visit http://127.0.0.1:{{ .Values.service.port }} to use your application" + kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME {{ .Values.service.port }}:$CONTAINER_PORT
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📒 Files selected for processing (13)
charts/hotrod/.helmignore(1 hunks)charts/hotrod/Chart.yaml(1 hunks)charts/hotrod/templates/NOTES.txt(1 hunks)charts/hotrod/templates/_helpers.tpl(1 hunks)charts/hotrod/templates/configmap.yaml(1 hunks)charts/hotrod/templates/deployment.yaml(1 hunks)charts/hotrod/templates/ingestion-key-secret.yaml(1 hunks)charts/hotrod/templates/ingress.yaml(1 hunks)charts/hotrod/templates/service.yaml(1 hunks)charts/hotrod/templates/serviceaccount.yaml(1 hunks)charts/hotrod/templates/tests/test-connection.yaml(1 hunks)charts/hotrod/values.yaml(1 hunks)ct.yaml(1 hunks)
✅ Files skipped from review due to trivial changes (2)
- charts/hotrod/Chart.yaml
- charts/hotrod/.helmignore
🧰 Additional context used
🪛 LanguageTool
charts/hotrod/templates/NOTES.txt
[uncategorized] ~9-~9: Loose punctuation mark.
Context: ...services {{ include "hotrod.fullname" . }}) export NODE_IP=$(kubectl get nodes ...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~14-~14: Loose punctuation mark.
Context: ...} svc -w {{ include "hotrod.fullname" . }}' export SERVICE_IP=$(kubectl get svc...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~15-~15: Loose punctuation mark.
Context: ...space }} {{ include "hotrod.fullname" . }} --template "{{"{{ range (index .status...
(UNLIKELY_OPENING_PUNCTUATION)
[uncategorized] ~18-~18: Loose punctuation mark.
Context: ...etes.io/name={{ include "hotrod.name" . }},app.kubernetes.io/instance={{ .Release...
(UNLIKELY_OPENING_PUNCTUATION)
🪛 YAMLlint (1.35.1)
charts/hotrod/templates/configmap.yaml
[error] 4-4: syntax error: expected , but found ''
(syntax)
charts/hotrod/templates/ingestion-key-secret.yaml
[error] 1-1: syntax error: expected the node content, but found '-'
(syntax)
charts/hotrod/templates/tests/test-connection.yaml
[error] 4-4: syntax error: expected , but found ''
(syntax)
charts/hotrod/templates/deployment.yaml
[error] 6-6: syntax error: expected the node content, but found '-'
(syntax)
charts/hotrod/templates/serviceaccount.yaml
[error] 1-1: syntax error: expected the node content, but found '-'
(syntax)
charts/hotrod/templates/service.yaml
[error] 1-1: syntax error: expected the node content, but found '-'
(syntax)
charts/hotrod/templates/ingress.yaml
[error] 1-1: syntax error: expected the node content, but found '-'
(syntax)
charts/hotrod/values.yaml
[error] 113-113: trailing spaces
(trailing-spaces)
🪛 GitHub Check: lint-chart
charts/hotrod/values.yaml
[failure] 113-113:
113:32 [trailing-spaces] trailing spaces
🪛 GitHub Actions: Lint Charts
charts/hotrod/values.yaml
[error] 113-113: Trailing spaces detected at position 32
⏰ Context from checks skipped due to timeout of 90000ms (1)
- GitHub Check: test-chart
🔇 Additional comments (5)
charts/hotrod/templates/_helpers.tpl (1)
1-24: LGTM! Well-structured naming templates.The name and fullname template functions follow Helm best practices with proper truncation, override support, and DNS compatibility.
ct.yaml (1)
9-9: LGTM! Proper integration with chart testing.The hotrod chart is correctly added to the chart testing configuration.
charts/hotrod/templates/ingestion-key-secret.yaml (1)
1-14: Review secret management approach.While the implementation is functional, consider these security recommendations:
- Avoid storing sensitive data in Values files
- Consider using external secret management solutions (e.g., Vault, Sealed Secrets)
- Add documentation about the expected format and security implications of the ingestion key
Let's verify if there are any sensitive values committed in the repository:
✅ Verification successful
✅ Secret management approach is secure
The current implementation follows security best practices:
- Default values are empty strings
- Supports external secrets via
existingSecretName- No sensitive data is committed in the Values files
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Search for potential sensitive values in Values files echo "Checking for potential sensitive data in Values files..." rg -i "ingestionKey:|secret:|password:|key:" -g "values.yaml" -g "values-*.yaml"Length of output: 2490
🧰 Tools
🪛 YAMLlint (1.35.1)
[error] 1-1: syntax error: expected the node content, but found '-'
(syntax)
charts/hotrod/templates/deployment.yaml (1)
37-38: Review the "all" argument usage for security implications.Running with the "all" argument might expose unnecessary services. Consider explicitly specifying only the required services to minimize the attack surface.
charts/hotrod/values.yaml (1)
15-21: Review image repository and tag strategy.
- The image is hosted on a personal Docker Hub account (coolboi567/hotrod). Consider using an official or organization-controlled repository.
- No specific tag is set, which could lead to inconsistent deployments.
| {{/* | ||
| Create the name of the service account to use for the hotrod | ||
| */}} | ||
| {{- define "hotrod.serviceAccountName" -}} | ||
| {{- if .Values.serviceAccount.create }} | ||
| {{- default (include "hotrod.fullname" .) .Values.serviceAccount.name }} | ||
| {{- else }} | ||
| {{- default "default" .Values.serviceAccount.name }} | ||
| {{- end }} | ||
| {{- end }} |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add validation for service account name.
When serviceAccount.create is false, we should validate that serviceAccount.name is provided if not using "default".
{{- define "hotrod.serviceAccountName" -}}
{{- if .Values.serviceAccount.create }}
{{- default (include "hotrod.fullname" .) .Values.serviceAccount.name }}
{{- else }}
-{{- default "default" .Values.serviceAccount.name }}
+{{- $name := default "default" .Values.serviceAccount.name }}
+{{- if and (ne $name "default") (empty $name) }}
+{{- fail "serviceAccount.name is required when serviceAccount.create is false and not using 'default'" }}
+{{- end }}
+{{- $name }}
{{- end }}
{{- end }}Committable suggestion skipped: line range outside the PR's diff.
| {{/* | ||
| OTLP exporter environment variables used by Hotrod. | ||
| */}} | ||
| {{- define "hotrod.otlp-env" }} | ||
| - name: OTEL_EXPORTER_OTLP_ENDPOINT | ||
| value: {{ required "otel.endpoint is required" .Values.otel.endpoint }} | ||
| # - name: OTEL_EXPORTER_OTLP_INSECURE | ||
| # value: {{ default true .Values.otel.insecure | quote }} | ||
| {{- if or .Values.otel.existingSecretName .Values.otel.ingestionKey }} | ||
| - name: SIGNOZ_INGESTION_KEY | ||
| valueFrom: | ||
| secretKeyRef: | ||
| name: {{ include "hotrod.otel.secretName" . }} | ||
| key: {{ include "hotrod.otel.secretKey" . }} | ||
| - name: OTEL_EXPORTER_OTLP_HEADERS | ||
| value: "signoz-access-token=$(SIGNOZ_INGESTION_KEY)" | ||
| {{- end }} | ||
| {{- end }} |
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💡 Codebase verification
🛠️ Refactor suggestion
Remove commented OTLP insecure configuration
The OTLP insecure configuration is commented out in both values.yaml and template files, and no other parts of the codebase depend on it. Remove these commented sections to maintain clean code. If this feature is needed in the future, it can be properly implemented then.
🔗 Analysis chain
Address commented OTLP configuration.
The OTLP insecure flag is commented out but might be needed for development environments.
Consider either:
- Removing the commented code if not needed
- Implementing it properly if required for development environments
{{- define "hotrod.otlp-env" }}
- name: OTEL_EXPORTER_OTLP_ENDPOINT
value: {{ required "otel.endpoint is required" .Values.otel.endpoint }}
-# - name: OTEL_EXPORTER_OTLP_INSECURE
-# value: {{ default true .Values.otel.insecure | quote }}
+{{- if .Values.otel.insecure }}
+- name: OTEL_EXPORTER_OTLP_INSECURE
+ value: {{ .Values.otel.insecure | quote }}
+{{- end }}🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Check if any deployment files reference OTEL_EXPORTER_OTLP_INSECURE
rg -l "OTEL_EXPORTER_OTLP_INSECURE" charts/hotrod/templates/
Length of output: 97
Script:
#!/bin/bash
# Check values files for insecure configuration
echo "=== Checking values files ==="
rg -i "insecure" charts/hotrod/values.yaml || true
echo -e "\n=== Checking documentation ==="
fd README.md charts/hotrod/ -x cat {} || true
echo -e "\n=== Checking for other OTLP configurations ==="
rg "OTEL_EXPORTER_OTLP" charts/hotrod/
Length of output: 672
| {{- if .Values.serviceAccount.create -}} | ||
| apiVersion: v1 | ||
| kind: ServiceAccount | ||
| metadata: | ||
| name: {{ include "hotrod.serviceAccountName" . }} | ||
| labels: | ||
| {{- include "hotrod.labels" . | nindent 4 }} | ||
| {{- with .Values.serviceAccount.annotations }} | ||
| annotations: | ||
| {{- toYaml . | nindent 4 }} | ||
| {{- end }} | ||
| automountServiceAccountToken: {{ .Values.serviceAccount.automount }} | ||
| {{- end }} |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Set a secure default for automountServiceAccountToken.
For security best practices, explicitly set a default value for automountServiceAccountToken.
-automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+automountServiceAccountToken: {{ default false .Values.serviceAccount.automount }}This ensures tokens are only mounted when explicitly enabled.
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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.
| {{- if .Values.serviceAccount.create -}} | |
| apiVersion: v1 | |
| kind: ServiceAccount | |
| metadata: | |
| name: {{ include "hotrod.serviceAccountName" . }} | |
| labels: | |
| {{- include "hotrod.labels" . | nindent 4 }} | |
| {{- with .Values.serviceAccount.annotations }} | |
| annotations: | |
| {{- toYaml . | nindent 4 }} | |
| {{- end }} | |
| automountServiceAccountToken: {{ .Values.serviceAccount.automount }} | |
| {{- end }} | |
| {{- if .Values.serviceAccount.create -}} | |
| apiVersion: v1 | |
| kind: ServiceAccount | |
| metadata: | |
| name: {{ include "hotrod.serviceAccountName" . }} | |
| labels: | |
| {{- include "hotrod.labels" . | nindent 4 }} | |
| {{- with .Values.serviceAccount.annotations }} | |
| annotations: | |
| {{- toYaml . | nindent 4 }} | |
| {{- end }} | |
| automountServiceAccountToken: {{ default false .Values.serviceAccount.automount }} | |
| {{- end }} |
🧰 Tools
🪛 YAMLlint (1.35.1)
[error] 1-1: syntax error: expected the node content, but found '-'
(syntax)
| from locust import HttpUser, task, between | ||
| class UserTasks(HttpUser): | ||
| wait_time = between(5, 15) | ||
| @task | ||
| def rachel(self): | ||
| self.client.get("/dispatch?customer=123&nonse=0.6308392664170006") | ||
| @task | ||
| def trom(self): | ||
| self.client.get("/dispatch?customer=392&nonse=0.015296363321630757") | ||
| @task | ||
| def japanese(self): | ||
| self.client.get("/dispatch?customer=731&nonse=0.8022286220408668") | ||
| @task | ||
| def coffee(self): | ||
| self.client.get("/dispatch?customer=567&nonse=0.0022220379420636593") |
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🛠️ Refactor suggestion
Enhance load testing implementation.
The current load testing script could be improved in several ways:
- Hardcoded customer IDs and nonce values limit test coverage
- Missing error handling for failed requests
- Limited variety in test scenarios
Consider this enhanced implementation:
from locust import HttpUser, task, between
+ import random
+ import time
class UserTasks(HttpUser):
wait_time = between(5, 15)
+
+ def __init__(self, *args, **kwargs):
+ super().__init__(*args, **kwargs)
+ self.customer_ids = list(range(100, 999))
+
+ def on_start(self):
+ random.shuffle(self.customer_ids)
+
@task
def rachel(self):
- self.client.get("/dispatch?customer=123&nonse=0.6308392664170006")
+ self._dispatch_request()
+
+ def _dispatch_request(self):
+ try:
+ customer_id = random.choice(self.customer_ids)
+ nonce = time.time()
+ response = self.client.get(
+ f"/dispatch?customer={customer_id}&nonse={nonce}",
+ name="/dispatch"
+ )
+ response.raise_for_status()
+ except Exception as e:
+ self.environment.events.request_failure.fire(
+ request_type="GET",
+ name="/dispatch",
+ response_time=0,
+ exception=e,
+ )This implementation provides:
- Dynamic customer IDs
- Proper error handling
- More realistic nonce values
- Better request naming for metrics
Committable suggestion skipped: line range outside the PR's diff.
| - path: {{ .path }} | ||
| {{- with .pathType }} | ||
| pathType: {{ . }} | ||
| {{- end }} |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add default pathType for Ingress paths.
The pathType field is required in networking.k8s.io/v1 Ingress but currently optional in the template. Consider setting a default value.
- path: {{ .path }}
- {{- with .pathType }}
- pathType: {{ . }}
- {{- end }}
+ pathType: {{ .pathType | default "Prefix" }}📝 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.
| - path: {{ .path }} | |
| {{- with .pathType }} | |
| pathType: {{ . }} | |
| {{- end }} | |
| - path: {{ .path }} | |
| pathType: {{ .pathType | default "Prefix" }} |
| {{- with .Values.livenessProbe }} | ||
| livenessProbe: | ||
| {{- toYaml . | nindent 12 }} | ||
| {{- end }} | ||
| {{- with .Values.readinessProbe }} | ||
| readinessProbe: | ||
| {{- toYaml . | nindent 12 }} | ||
| {{- end }} |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Configure default probes for better reliability.
The deployment allows for probe configuration but doesn't set defaults. Consider adding default liveness and readiness probes to ensure proper container health monitoring.
Add these default values to your values.yaml:
livenessProbe:
httpGet:
path: /
port: http
initialDelaySeconds: 10
periodSeconds: 10
readinessProbe:
httpGet:
path: /
port: http
initialDelaySeconds: 5
periodSeconds: 5| env: | ||
| - name: LOCUST_MODE | ||
| value: standalone | ||
| - name: ATTACKED_HOST | ||
| value: http://localhost:{{ .Values.service.port }} | ||
| - name: TASK_DELAY_FROM | ||
| value: "45" | ||
| - name: TASK_DELAY_TO | ||
| value: "60" | ||
| - name: QUIET_MODE | ||
| value: "false" | ||
| - name: LOCUST_OPTS | ||
| value: "--headless -u 6 -r 2 --print-stats" |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Make locust configuration more flexible.
The locust configuration has several hardcoded values that should be configurable:
- Task delay values (45-60)
- Number of users (6) and spawn rate (2)
- Localhost connection might not work in all scenarios
Move these configurations to values.yaml:
locust:
config:
taskDelayFrom: "45"
taskDelayTo: "60"
users: "6"
spawnRate: "2"
quietMode: "false"
host: "http://localhost:{{ .Values.service.port }}"Then update the deployment to use these values:
- name: TASK_DELAY_FROM
- value: "45"
+ value: {{ .Values.locust.config.taskDelayFrom | quote }}
- name: TASK_DELAY_TO
- value: "60"
+ value: {{ .Values.locust.config.taskDelayTo | quote }}
- name: LOCUST_OPTS
- value: "--headless -u 6 -r 2 --print-stats"
+ value: "--headless -u {{ .Values.locust.config.users }} -r {{ .Values.locust.config.spawnRate }} --print-stats"| securityContext: | ||
| {{- toYaml .Values.podSecurityContext | nindent 8 }} |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Set secure defaults for security context.
The security context is configurable but doesn't set secure defaults. Consider setting restrictive defaults to enhance security.
Add these secure defaults to your values.yaml:
podSecurityContext:
fsGroup: 1000
runAsNonRoot: true
runAsUser: 1000
securityContext:
capabilities:
drop:
- ALL
readOnlyRootFilesystem: true
runAsNonRoot: true
runAsUser: 1000Also applies to: 33-34
| otel: | ||
| # -- OTLP HTTP Endpoint/IP Address of the SigNoz or any other OpenTelemetry backend. | ||
| endpoint: null | ||
| # # -- Whether to use insecure mode for the endpoint | ||
| # insecure: true | ||
| # -- Ingestion key in case of secured deployment of SigNoz Cloud/Enterprise | ||
| ingestionKey: "" | ||
| # -- Existing secret name to be used for ingestion key. | ||
| existingSecretName: "" | ||
| # -- Existing secret key to be used for ingestion key, defaults to `signoz-ingestion-key` | ||
| existingSecretKey: "" |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Improve OTLP configuration validation and documentation.
- The OTLP endpoint is required but set to null by default. This should be validated in the templates.
- The insecure mode configuration is commented out but might be needed for development.
Add validation in the templates:
{{- if not .Values.otel.endpoint }}
{{- fail "OTLP endpoint is required. Please set .Values.otel.endpoint" }}
{{- end }}Also, consider adding development-focused documentation about using insecure mode.
charts/hotrod/values.yaml
Outdated
| # -- Whether to enable locust | ||
| enabled: true |
There was a problem hiding this comment.
Fix trailing spaces to resolve linting errors.
Remove trailing spaces from line 113 to fix the linting errors reported by both YAMLlint and GitHub Actions.
Apply this change:
- # -- Whether to enable locust
+ # -- Whether to enable locust📝 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.
| # -- Whether to enable locust | |
| enabled: true | |
| # -- Whether to enable locust | |
| enabled: true |
🧰 Tools
🪛 YAMLlint (1.35.1)
[error] 113-113: trailing spaces
(trailing-spaces)
🪛 GitHub Check: lint-chart
[failure] 113-113:
113:32 [trailing-spaces] trailing spaces
🪛 GitHub Actions: Lint Charts
[error] 113-113: Trailing spaces detected at position 32
Signed-off-by: Prashant Shahi <prashant@signoz.io>
Signed-off-by: Prashant Shahi <prashant@signoz.io>
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Actionable comments posted: 4
🧹 Nitpick comments (5)
.github/workflows/test.yaml (2)
46-46: Consider using GitHub Actions environment variables for repeated values.The endpoint hostname is repeated in both
--setarguments. Consider using a GitHub Actions environment variable to make it more maintainable:- run: ct install --config ct.yaml --helm-extra-set-args '--set=otelCollectorEndpoint=endpoint-that-does-not-exist:4317' '--set=otel.endpoint=endpoint-that-does-not-exist:4318' + env: + TEST_ENDPOINT: endpoint-that-does-not-exist + run: ct install --config ct.yaml --helm-extra-set-args '--set=otelCollectorEndpoint=${{ env.TEST_ENDPOINT }}:4317' '--set=otel.endpoint=${{ env.TEST_ENDPOINT }}:4318'
46-46: Add inline documentation for the test endpoints.Consider adding a comment explaining that these endpoints are intentionally non-existent for testing purposes. This will prevent confusion for future contributors who might think this is a configuration error.
+ # Using non-existent endpoints for testing. In production, these would point to actual OpenTelemetry collectors. run: ct install --config ct.yaml --helm-extra-set-args '--set=otelCollectorEndpoint=endpoint-that-does-not-exist:4317' '--set=otel.endpoint=endpoint-that-does-not-exist:4318'charts/hotrod/values.yaml (3)
33-41: Review service account configuration.The current configuration has
automount: truebutcreate: false. This combination might be confusing as automounting won't work without a service account. Consider either:
- Setting
automount: falsewhencreate: false- Adding validation in templates to ensure proper configuration
115-121: Consider using semantic versioning for the locust image.The current configuration uses a fixed version (1.2.3). Consider using semantic versioning to allow for patch updates while maintaining stability:
- tag: 1.2.3 + tag: ~1.2.3
122-155: Improve port configuration values.The node port values are set to empty strings which could cause issues. Consider:
- Using
nullinstead of empty strings for unset values- Adding validation for port number ranges
- nodePort: "" + nodePort: null
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Plan: Pro
📒 Files selected for processing (2)
.github/workflows/test.yaml(1 hunks)charts/hotrod/values.yaml(1 hunks)
🔇 Additional comments (2)
charts/hotrod/values.yaml (2)
1-11: Improve OTLP configuration validation and documentation.
- The OTLP endpoint is required but set to null by default. This should be validated in the templates.
- The insecure mode configuration is commented out but might be needed for development.
Let's verify if the templates include the necessary validation:
#!/bin/bash # Check if templates validate the required OTLP endpoint rg -l "\.Values\.otel\.endpoint" charts/hotrod/templates/
113-113: Fix trailing spaces to resolve linting errors.Remove trailing spaces from line 113 to fix the linting errors reported by both YAMLlint and GitHub Actions.
.github/workflows/test.yaml
Outdated
| @@ -43,5 +43,5 @@ jobs: | |||
| if: steps.list-changed.outputs.changed == 'true' | |||
|
|
|||
| - name: Run chart-testing (install) | |||
| run: ct install --config ct.yaml --helm-extra-set-args '--set=otelCollectorEndpoint=endpoint-that-does-not-exist:4317' | |||
| run: ct install --config ct.yaml --helm-extra-set-args '--set=otelCollectorEndpoint=endpoint-that-does-not-exist:4317' '--set=otel.endpoint=endpoint-that-does-not-exist:4318' | |||
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💡 Codebase verification
The otelCollectorEndpoint parameter is redundant and unsupported
The chart only supports and uses the otel.endpoint configuration (port 4318 for OTLP HTTP). The otelCollectorEndpoint parameter in the test command appears to be redundant and should be removed as it's not used by the chart.
- Remove
--set=otelCollectorEndpoint=endpoint-that-does-not-exist:4317from the test command in.github/workflows/test.yaml
🔗 Analysis chain
Please clarify the need for dual OpenTelemetry endpoint configuration.
The command sets two different OpenTelemetry endpoints with different ports:
otelCollectorEndpointon port 4317otel.endpointon port 4318
Could you explain why two different endpoint configurations are needed? This would help future maintainers understand the purpose of each setting.
Let me verify if these endpoint configurations are consistently used across the hotrod chart:
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for references to both endpoint configurations in the hotrod chart
echo "Searching for otelCollectorEndpoint references:"
rg "otelCollectorEndpoint" charts/hotrod/
echo -e "\nSearching for otel.endpoint references:"
rg "otel.endpoint" charts/hotrod/
Length of output: 386
Script:
#!/bin/bash
# Check values and documentation
echo "=== Checking values.yaml ==="
cat charts/hotrod/values.yaml
echo -e "\n=== Checking Chart.yaml and README ==="
cat charts/hotrod/Chart.yaml
cat charts/hotrod/README.md 2>/dev/null || echo "README.md not found"
echo -e "\n=== Checking all template files for any endpoint references ==="
find charts/hotrod/templates -type f -exec cat {} \;
Length of output: 18241
| # -- Liveness probe for hotrod | ||
| livenessProbe: {} | ||
| # httpGet: | ||
| # path: / | ||
| # port: http | ||
| # -- Readiness probe for hotrod | ||
| readinessProbe: {} | ||
| # httpGet: | ||
| # path: / | ||
| # port: http |
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🛠️ Refactor suggestion
Configure health probes by default.
The liveness and readiness probes are not configured by default. This could lead to improper container lifecycle management. Also, the example uses an undefined 'http' port name.
-livenessProbe: {}
+livenessProbe:
+ httpGet:
+ path: /
+ port: 8080
+ initialDelaySeconds: 10
+ periodSeconds: 10
-readinessProbe: {}
+readinessProbe:
+ httpGet:
+ path: /
+ port: 8080
+ initialDelaySeconds: 5
+ periodSeconds: 5📝 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.
| # -- Liveness probe for hotrod | |
| livenessProbe: {} | |
| # httpGet: | |
| # path: / | |
| # port: http | |
| # -- Readiness probe for hotrod | |
| readinessProbe: {} | |
| # httpGet: | |
| # path: / | |
| # port: http | |
| # -- Liveness probe for hotrod | |
| livenessProbe: | |
| httpGet: | |
| path: / | |
| port: 8080 | |
| initialDelaySeconds: 10 | |
| periodSeconds: 10 | |
| # -- Readiness probe for hotrod | |
| readinessProbe: | |
| httpGet: | |
| path: / | |
| port: 8080 | |
| initialDelaySeconds: 5 | |
| periodSeconds: 5 |
| # -- Pod security context for hotrod | ||
| podSecurityContext: {} | ||
| # -- Security context for hotrod | ||
| securityContext: {} | ||
| # capabilities: | ||
| # drop: | ||
| # - ALL | ||
| # readOnlyRootFilesystem: true | ||
| # runAsNonRoot: true | ||
| # runAsUser: 1000 |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Enable security context by default.
Consider enabling security contexts by default with secure values:
- Drop unnecessary capabilities
- Enable read-only root filesystem
- Run as non-root user
This aligns with Kubernetes security best practices.
-podSecurityContext: {}
+podSecurityContext:
+ runAsNonRoot: true
+ runAsUser: 1000
+ fsGroup: 1000
-securityContext: {}
+securityContext:
+ capabilities:
+ drop:
+ - ALL
+ readOnlyRootFilesystem: true
+ runAsNonRoot: true
+ runAsUser: 1000📝 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.
| # -- Pod security context for hotrod | |
| podSecurityContext: {} | |
| # -- Security context for hotrod | |
| securityContext: {} | |
| # capabilities: | |
| # drop: | |
| # - ALL | |
| # readOnlyRootFilesystem: true | |
| # runAsNonRoot: true | |
| # runAsUser: 1000 | |
| # -- Pod security context for hotrod | |
| podSecurityContext: | |
| runAsNonRoot: true | |
| runAsUser: 1000 | |
| fsGroup: 1000 | |
| # -- Security context for hotrod | |
| securityContext: | |
| capabilities: | |
| drop: | |
| - ALL | |
| readOnlyRootFilesystem: true | |
| runAsNonRoot: true | |
| runAsUser: 1000 |
| image: | ||
| # -- Image repository for hotrod | ||
| repository: coolboi567/hotrod | ||
| # -- Image tag for hotrod, if not set defaults to chart appVersion | ||
| tag: "" | ||
| # -- Image pull policy for hotrod | ||
| pullPolicy: IfNotPresent |
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💡 Codebase verification
Switch to official Jaeger source for HotRod
The current image coolboi567/hotrod is from a personal repository. Since HotRod is an official example from the Jaeger project (confirmed in jaegertracing/jaeger/examples/hotrod), it's recommended to:
- Either use an official Jaeger image that includes HotRod
- Or build the image directly from the official Jaeger repository
This ensures better security, maintenance, and alignment with the official Jaeger project.
🔗 Analysis chain
Consider using an official image repository.
The current image repository coolboi567/hotrod appears to be a personal repository. This could pose security risks and maintenance concerns.
Let's verify if there's an official repository available:
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for official hotrod images
curl -s "https://registry.hub.docker.com/v2/search/repositories?query=hotrod&page_size=25" | jq '.results[] | select(.official==true or .name | contains("jaeger")) | {name, description}'
Length of output: 290
Script:
#!/bin/bash
# Search for hotrod-related images on Docker Hub
echo "=== Docker Hub Search ==="
curl -s "https://registry.hub.docker.com/v2/search/repositories?query=jaeger-hotrod&page_size=10" | jq -r '.results[] | "Name: \(.name)\nDescription: \(.description)\nStars: \(.star_count)\nOfficial: \(.official)\n---"'
echo -e "\n=== GitHub Check ==="
# Check if HotRod is part of Jaeger's official examples
curl -s "https://api.github.com/search/code?q=hotrod+repo:jaegertracing/jaeger" | jq -r '.items[] | select(.path | contains("hotrod")) | "Path: \(.path)\nURL: \(.html_url)"'
echo -e "\n=== Original Image Check ==="
# Check the original image details
curl -s "https://registry.hub.docker.com/v2/repositories/coolboi567/hotrod" | jq -r '. | "Last Updated: \(.last_updated)\nDescription: \(.description)\nStars: \(.star_count)"'
Length of output: 1460
Script:
#!/bin/bash
echo "=== Jaeger Official Images ==="
curl -s "https://registry.hub.docker.com/v2/repositories/jaegertracing" | jq -r '.results[]? | select(.name | contains("hotrod") or contains("demo")) | "Name: \(.name)\nDescription: \(.description)\n---"'
echo -e "\n=== GitHub HotRod Example ==="
curl -s "https://api.github.com/repos/jaegertracing/jaeger/contents/examples/hotrod" | \
jq -r 'if type == "object" and has("message") then "Not found" else "Found in examples/hotrod" end'
echo -e "\n=== Jaeger All-in-one Image ==="
curl -s "https://registry.hub.docker.com/v2/repositories/jaegertracing/all-in-one" | \
jq -r '. | "Name: all-in-one\nPulls: \(.pull_count)\nStars: \(.star_count)\n---"'
Length of output: 857
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Actionable comments posted: 0
🧹 Nitpick comments (1)
charts/hotrod/Chart.yaml (1)
1-4: Enhance the chart description to be more specific.The current description is a generic placeholder. Consider updating it to describe the actual purpose of the hotrod application, such as "A Helm chart for deploying the hotrod demo application with OpenTelemetry integration and load testing capabilities."
apiVersion: v2 name: hotrod -description: A Helm chart for Kubernetes +description: A Helm chart for deploying the hotrod demo application with OpenTelemetry integration and load testing capabilities type: application
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (2)
charts/hotrod/Chart.yaml(1 hunks)ct.yaml(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
- ct.yaml
🔇 Additional comments (2)
charts/hotrod/Chart.yaml (2)
7-10: LGTM! Maintainer information is complete.The maintainer section correctly identifies SigNoz as the maintainer with appropriate contact information.
5-6: Verify the appVersion.Please confirm if "1.65.0" is the correct version of the hotrod application being deployed.
✅ Verification successful
The appVersion "1.65.0" is correct
The version matches an existing tag in the Docker Hub repository coolboi567/hotrod, and the chart is properly configured to use this version by default when no specific tag is set in values.yaml.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Search for any references to the hotrod version in the repository # to verify consistency with the appVersion. echo "Searching for version references in values.yaml..." rg --type yaml "1\.65\.0" charts/hotrod/values.yaml echo "Searching for Docker image tags in values.yaml..." rg --type yaml "image:.*hotrod" charts/hotrod/values.yamlLength of output: 333
Script:
#!/bin/bash # Check values.yaml content and search for version patterns echo "Checking if values.yaml exists..." ls -l charts/hotrod/values.yaml echo -e "\nContent of values.yaml:" cat charts/hotrod/values.yaml echo -e "\nSearching for version patterns..." rg -i "version|tag" charts/hotrod/values.yaml echo -e "\nSearching for hotrod configurations..." rg "hotrod|jaeger" charts/hotrod/values.yamlLength of output: 6611
Script:
#!/bin/bash # Check if the image version exists in Docker Hub curl -s "https://hub.docker.com/v2/repositories/coolboi567/hotrod/tags/?page_size=100" | jq -r '.results[].name'Length of output: 128
Signed-off-by: Prashant Shahi <prashant@signoz.io>
Signed-off-by: Prashant Shahi <prashant@signoz.io>
Features
Summary by CodeRabbit
New Features
.helmignorefile to specify ignored files during Helm package builds.Chores