CODEWITHSUNDEEP
gokustomize
Gerb
Gerb

Reputation: 955

Building custom Go Plugin

I'm in the process of creating a custom transformer for kustomize. However, I'm running into issues creating even the most basic Go Plugin. I'm trying to follow these steps here https://github.com/kubernetes-sigs/kustomize/blob/master/docs/plugins/goPluginGuidedExample.md

I'm using one of the plugins in mainline kustomize, ie. secretsfromdatabase [1]

According to the documentation, the instructions I'm following are:

tmpGoPath=$(mktemp -d)
GOPATH=$tmpGoPath go install sigs.k8s.io/kustomize/kustomize
GOPATH=$tmpGoPath go build -buildmode plugin -o SecretsFromDatabase.so SecretsFromDatabase.go
cp SecretsFromDatabase.so ~/.config/kustomize/plugin/mygenerators/sopsencodedsecrets/SopsEncodedSecrets

Now when I run kustomize, I get the following error:

Error: accumulating resources: recursed accumulation [...] fails to load: plugin.Open("$HOME/.config/kustomize/plugin/mygenerators/sopsencodedsecrets/SopsEncodedSecrets"): plugin was built with a different version of package internal/cpu

What is strange is I'm using the same tag in git as the version that is installed on my system. 

kustomize version                                                                                                                                                     tags/kustomize/v3.5.4^0
{Version:3.5.4 GitCommit:3af514fa9f85430f0c1557c4a0291e62112ab026 BuildDate:2020-01-17T14:23:25+00:00 GoOs:darwin GoArch:amd64}

[1] https://github.com/kubernetes-sigs/kustomize/tree/master/plugin/someteam.example.com/v1/secretsfromdatabase

Upvotes: 0

Views: 1574

Answers (1)

Oleg
Oleg

Reputation: 742

As for now plugins are very difficult to write and support because the environment should be identical and in practice only original build system can reliably build the plugins. In result a lot of people like you finding little differences in their build environments. I think it is bad idea from design and strongly recommend to get acquainted with Reddit discussion here

Upvotes: 2

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