Argument list too long. In an argoCD sidecar plugin.

[MuraliBabuChinni]

Problem statement Argocd version: 2.7.3 Argocd Sidecar image is built using the following docker image FROM alpine:latest RUN mkdir -p /usr/local/bin RUN wget -O /usr/local/bin/sops https://github.com/mozilla/sops/releases/download/v3.7.3/sops-v3.7.3.linux RUN chmod 755 /usr/local/bin/sops RUN wget https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 RUN chmod 700 get-helm-3 RUN mv get-helm-3 get-helm-3.sh RUN export VERIFY_CHECKSUM=false && sh get-helm-3.sh RUN ["apk", "fix", "grep"] RUN apk --no-cache add curl RUN wget -O /usr/local/bin/argocd-vault-plugin https://github.com/argoproj-labs/argocd-vault-plugin/releases/download/v1.16.1/argocd-vault-plugin_1.16.1_linux_amd64 RUN chmod 755 /usr/local/bin/argocd-vault-plugin

Argocd side car configuration is as follows plugin.yaml: | apiVersion: argoproj.io/v1alpha1 kind: ConfigManagementPlugin metadata: name: plugin spec: discover: fileName: '.yaml' generate: args:

• if [ "$ARGOCD_ENV_SOP_FILE" != "" ];then sops -d sop.yaml > secrets.yaml && helm template -f values.yaml -f plainValues.yaml -f secrets.yaml -n $ARGOCD_APP_NAMESPACE $ARGOCD_APP_NAME .; elif [ "$ARGOCD_ENV_VALUE_FILE" != "" ];then helm template -f values.yaml -f plainValues.yaml -n $ARGOCD_APP_NAMESPACE $ARGOCD_APP_NAME .; else helm template -n $ARGOCD_APP_NAMESPACE $ARGOCD_APP_NAME . ;fi command:
• /bin/sh
• -c init: args:
• echo "$ARGOCD_ENV_VALUE_FILE" > plainValues.yaml && echo "$ARGOCD_ENV_SOP_FILE" > sop.yaml command:
• /bin/sh
• -c

While trying to create an application using the following application.yaml apiVersion: argoproj.io/v1alpha1 kind: Application metadata: name: gl-vmaas-bootstrapper namespace: argocd spec: destination: namespace: vmaas server: https://kubernetes.default.svc project: default source: chart: gl-vmaas-bootstrapper repoURL: https://harbor.cgw-hpe.net/chartrepo/library targetRevision: 1.0.86 plugin: env:

• name: VALUE_FILE value: {{ .Files.Get "gl-vmaas-bootstrapper/gl-vmaas-bootstrapper-values.yaml" | quote }}
• name: SOPS_KMS_ARN value: XXXXXXXXXXXXXXXX
• name: SOP_FILE value: {{ .Files.Get "gl-vmaas-bootstrapper/gl-vmaas-bootstrapper-secrets.yaml" | quote }} syncPolicy: automated: prune: true selfHeal: true

we are getting the following error both in argocd sidecar container and argocd repo server "time="2024-04-21T07:34:30Z" level=error msg="finished unary call with code Unknown" error="plugin sidecar failed. error generating manifests in cmp: rpc error: code = Unknown desc = error generating manifests: fork/exec /bin/sh: argument list too long" grpc.code=Unknown grpc.method=GenerateManifest grpc.service=repository.RepoServerService grpc.start_time="2024-04-21T07:34:30Z" grpc.time_ms=129.233 span.kind=server system=grpc"

Few more observation 1 We are encountering this issue when the size of plainvalues.yaml or secrets.yaml is greater than ~130kb. 2 The ARG_MAX parameter on the sidecar container is 128kb.

We expect the secrets.yaml/plainValues.yaml which can grow upto 5mb or even more also. What is the recommendations in the scenario?

[divya-prakash2]

Any response on this will help debug this issue further. Please comment

[MuraliBabuChinni]

Hi Any update on this bug..

[andrii-korotkov-verkada]

ArgoCD versions 2.10 and below have reached EOL. Can you upgrade and tell us if the issue is still present, please?