[seaweedfs] Client mode refactoring and fix issues #1277
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Caution Review failedThe pull request is closed. WalkthroughThis update refactors the SeaweedFS Helm chart's external filer service configuration. It replaces the previous Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant Helm
participant Kubernetes
participant Filer Pod
participant Ingress
User->>Helm: Install/Upgrade SeaweedFS with new values
Helm->>Kubernetes: Render templates (with grpcHost, grpcPort, whitelist)
Kubernetes->>Filer Pod: Deploy filer with specified grpcHost/Port
Kubernetes->>Ingress: (If enabled) Create Ingress for filer external access
User->>Ingress: Connect to filer via GRPCS
Ingress->>Filer Pod: Route traffic if source in whitelist
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~15–20 minutes Suggested labels
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Summary of Changes
Hello @kvaps, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request introduces significant refactoring and enhancements to the SeaweedFS deployment, particularly for its client mode and external accessibility. It updates the COSI driver, streamlines configuration by replacing a single remoteEndpoint with more specific filer.grpcHost and filer.grpcPort parameters, and improves external exposure by implementing Nginx Ingress with GRPC passthrough and IP whitelisting. These changes aim to provide a more robust, secure, and configurable SeaweedFS setup.
Highlights
- Client Mode Refactoring: The configuration for SeaweedFS's 'Client' topology has been refactored. The previous
remoteEndpointparameter has been replaced by more granularfiler.grpcHostandfiler.grpcPortsettings, providing clearer separation and control over the GRPC service endpoint. - COSI Driver Update and Integration: The
seaweedfs-cosi-driverhas been updated to versionv0.2.0. Its deployment configuration now dynamically pulls the image tag from a dedicated file and utilizes the newfiler.grpcHostandfiler.grpcPortparameters for connecting to the SeaweedFS filer. - Nginx Ingress for External Filer Access: External access to the SeaweedFS filer is now managed via a new Nginx Ingress resource. This ingress is configured for GRPC passthrough and includes support for IP whitelisting, replacing the previous LoadBalancer service for external exposure.
- IP Whitelisting Capability: A new
filer.whitelistparameter has been introduced, allowing users to specify a list of IP addresses or CIDR ranges. This whitelist is applied to the Nginx Ingress, enhancing security by restricting access to the filer service.
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- update cosi-driver - add support exporting via nginx-ingress - add support for whitelist Signed-off-by: Andrei Kvapil <kvapss@gmail.com>
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Code Review
This pull request refactors the SeaweedFS client mode configuration by replacing remoteEndpoint with filer.grpcHost and filer.grpcPort, which improves clarity. It also introduces support for exporting the filer via nginx-ingress and a configurable IP whitelist.
The changes are well-structured, but I've identified a few issues:
- There are some unused variables in the new
ingress.yamltemplate. - A potential template rendering error exists in the
whitelist-source-rangeannotation logic withiningress.yaml. - The JSON schema for the new
whitelistvalue is incomplete.
I've provided suggestions to address these points. Overall, a good set of changes that will improve the chart's flexibility.
| annotations: | ||
| nginx.ingress.kubernetes.io/backend-protocol: GRPCS | ||
| nginx.ingress.kubernetes.io/ssl-passthrough: "true" | ||
| nginx.ingress.kubernetes.io/whitelist-source-range: "{{ join "," (.Values.filer.whitelist | default "0.0.0.0/32") }}" |
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The expression for whitelist-source-range is susceptible to a template rendering error. If .Values.filer.whitelist is not set in a values file, it will be nil, and the default filter will return the string "0.0.0.0/32". The join function expects a list, not a string, which will cause a failure.
A safer approach is to default to an empty list, which will result in an empty string for the annotation value. This is generally interpreted by Ingress controllers as not applying any IP-based restriction.
Additionally, the default value "0.0.0.0/32" is highly restrictive and only allows traffic from the IP address 0.0.0.0, which is likely not the intended behavior.
nginx.ingress.kubernetes.io/whitelist-source-range: "{{ join "," (.Values.filer.whitelist | default (list)) }}"
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empty list is not working for nginx ingress
| {{- $cozyConfig := lookup "v1" "ConfigMap" "cozy-system" "cozystack" }} | ||
| {{- $issuerType := (index $cozyConfig.data "clusterissuer") | default "http01" }} | ||
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| {{- $myNS := lookup "v1" "Namespace" "" .Release.Namespace }} | ||
| {{- $ingress := index $myNS.metadata.annotations "namespace.cozystack.io/ingress" }} | ||
| {{- $host := index $myNS.metadata.annotations "namespace.cozystack.io/host" }} |
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The variables $cozyConfig and $issuerType are defined but not used within this template. Removing them would improve code clarity and maintainability.
| "description": "A list of IP addresses or CIDR ranges that are allowed to access the filer service.", | ||
| "items": {}, | ||
| "type": "array" |
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The schema for the whitelist array is incomplete. The items property should specify the type of elements in the array, which should be strings.
"items": { "type": "string" },
- update cosi-driver - add support exporting via nginx-ingress - add support for whitelist Signed-off-by: Andrei Kvapil <kvapss@gmail.com> <!-- Thank you for making a contribution! Here are some tips for you: - Start the PR title with the [label] of Cozystack component: - For system components: [platform], [system], [linstor], [cilium], [kube-ovn], [dashboard], [cluster-api], etc. - For managed apps: [apps], [tenant], [kubernetes], [postgres], [virtual-machine] etc. - For development and maintenance: [tests], [ci], [docs], [maintenance]. - If it's a work in progress, consider creating this PR as a draft. - Don't hesistate to ask for opinion and review in the community chats, even if it's still a draft. - Add the label `backport` if it's a bugfix that needs to be backported to a previous version. --> <!-- Write a release note: - Explain what has changed internally and for users. - Start with the same [label] as in the PR title - Follow the guidelines at https://github.com/kubernetes/community/blob/master/contributors/guide/release-notes.md. --> ```release-note [seaweedfs] Client mode refactoring and fix issues - update cosi-driver - add support exporting via nginx-ingress - add support for whitelist ```
Signed-off-by: Andrei Kvapil kvapss@gmail.com
What this PR does
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