woodpecker-helm3/internal/helm/config.go
2019-12-23 14:03:51 -08:00

59 lines
3.8 KiB
Go

package helm
import (
"fmt"
"strings"
)
// The Config struct captures the `settings` and `environment` blocks in the application's drone
// config. Configuration in drone's `settings` block arrives as uppercase env vars matching the
// config key, prefixed with `PLUGIN_`. Config from the `environment` block is *not* prefixed; any
// keys that are likely to be in that block (i.e. things that use `from_secret` need an explicit
// `envconfig:` tag so that envconfig will look for a non-prefixed env var.
type Config struct {
// Configuration for drone-helm itself
Command helmCommand `envconfig:"HELM_COMMAND"` // Helm command to run
DroneEvent string `envconfig:"DRONE_BUILD_EVENT"` // Drone event that invoked this plugin.
UpdateDependencies bool `split_words:"true"` // Call `helm dependency update` before the main command
Repos []string `envconfig:"HELM_REPOS"` // Call `helm repo add` before the main command
Prefix string `` // Prefix to use when looking up secret env vars
Debug bool `` // Generate debug output and pass --debug to all helm commands
Values string `` // Argument to pass to --set in applicable helm commands
StringValues string `split_words:"true"` // Argument to pass to --set-string in applicable helm commands
ValuesFiles []string `split_words:"true"` // Arguments to pass to --values in applicable helm commands
Namespace string `` // Kubernetes namespace for all helm commands
KubeToken string `envconfig:"KUBERNETES_TOKEN"` // Kubernetes authentication token to put in .kube/config
SkipTLSVerify bool `envconfig:"SKIP_TLS_VERIFY"` // Put insecure-skip-tls-verify in .kube/config
Certificate string `envconfig:"KUBERNETES_CERTIFICATE"` // The Kubernetes cluster CA's self-signed certificate (must be base64-encoded)
APIServer string `envconfig:"API_SERVER"` // The Kubernetes cluster's API endpoint
ServiceAccount string `envconfig:"SERVICE_ACCOUNT"` // Account to use for connecting to the Kubernetes cluster
ChartVersion string `split_words:"true"` // Specific chart version to use in `helm upgrade`
DryRun bool `split_words:"true"` // Pass --dry-run to applicable helm commands
Wait bool `` // Pass --wait to applicable helm commands
ReuseValues bool `split_words:"true"` // Pass --reuse-values to `helm upgrade`
Timeout string `` // Argument to pass to --timeout in applicable helm commands
Chart string `` // Chart argument to use in applicable helm commands
Release string `` // Release argument to use in applicable helm commands
Force bool `` // Pass --force to applicable helm commands
}
type helmCommand string
// helmCommand.Decode checks the given value against the list of known commands and generates a helpful error if the command is unknown.
func (cmd *helmCommand) Decode(value string) error {
known := []string{"upgrade", "delete", "lint", "help"}
for _, c := range known {
if value == c {
*cmd = helmCommand(value)
return nil
}
}
if value == "" {
return nil
}
known[len(known)-1] = fmt.Sprintf("or %s", known[len(known)-1])
return fmt.Errorf("unknown command '%s'. If specified, command must be %s",
value, strings.Join(known, ", "))
}