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https://github.com/thegeeklab/drone-docker-buildx.git
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d097ea0a7b
GOOGLE_APPLICATION_CREDENTIALS "should point to a file that defines the credentials", and should not be the contents of the credentials to follow Google's convention. See https://developers.google.com/identity/protocols/application-default-credentials#howtheywork.
68 lines
1.2 KiB
Go
68 lines
1.2 KiB
Go
package main
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import (
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"encoding/base64"
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"os"
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"os/exec"
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"path"
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"strings"
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)
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// gcr default username
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const username = "_json_key"
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func main() {
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var (
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repo = getenv("PLUGIN_REPO")
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registry = getenv("PLUGIN_REGISTRY")
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password = getenv(
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"PLUGIN_JSON_KEY",
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"GCR_JSON_KEY",
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"GOOGLE_CREDENTIALS",
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"TOKEN",
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)
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)
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// decode the token if base64 encoded
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decoded, err := base64.StdEncoding.DecodeString(password)
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if err == nil {
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password = string(decoded)
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}
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// default registry value
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if registry == "" {
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registry = "gcr.io"
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}
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// must use the fully qualified repo name. If the
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// repo name does not have the registry prefix we
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// should prepend.
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if !strings.HasPrefix(repo, registry) {
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repo = path.Join(registry, repo)
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}
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os.Setenv("PLUGIN_REPO", repo)
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os.Setenv("PLUGIN_REGISTRY", registry)
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os.Setenv("DOCKER_USERNAME", username)
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os.Setenv("DOCKER_PASSWORD", password)
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// invoke the base docker plugin binary
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cmd := exec.Command("drone-docker")
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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err = cmd.Run()
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if err != nil {
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os.Exit(1)
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}
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}
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func getenv(key ...string) (s string) {
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for _, k := range key {
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s = os.Getenv(k)
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if s != "" {
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return
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}
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}
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return
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}
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