13c663e906
This change revealed more about how the system needs to work, so there
are some supporting changes:
* helm.upgrade and helm.help are now vars rather than raw functions.
This allows unit tests to target the "which step should we run"
logic directly by comparing function pointers, rather than having to
configure/prepare a fully-valid Plan and then infer the logic’s
correctness based on the Plan’s state.
* configuration that's specific to kubeconfig initialization is now part
of the InitKube struct rather than run.Config, since other steps
shouldn’t need access to those settings (particularly the secrets).
* Step.Execute now receives a run.Config so it can log debug output.
64 lines
2.9 KiB
Go
64 lines
2.9 KiB
Go
package helm
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import (
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"fmt"
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"strings"
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)
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// The Config struct captures the `settings` and `environment` blocks inthe application's drone
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// config. Configuration in drone's `settings` block arrives as uppercase env vars matching the
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// config key, prefixed with `PLUGIN_`. Config from the `environment` block is *not* prefixed; any
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// keys that are likely to be in that block (i.e. things that use `from_secret` need an explicit
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// `envconfig:` tag so that envconfig will look for a non-prefixed env var.
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type Config struct {
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// Configuration for drone-helm itself
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Command helmCommand `envconfig:"HELM_COMMAND"` // Helm command to run
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DroneEvent string `envconfig:"DRONE_BUILD_EVENT"` // Drone event that invoked this plugin.
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UpdateDependencies bool `split_words:"true"` // call `helm dependency update` before the main command
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Repos []string `envconfig:"HELM_REPOS"` // call `helm repo add` before the main command
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Prefix string `` // Prefix to use when looking up secret env vars
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// Global helm config
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Debug bool `` // global helm flag (also applies to drone-helm itself)
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KubeConfig string `split_words:"true" default:"/root/.kube/config"` // path to the kube config file
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Values string ``
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StringValues string `split_words:"true"`
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ValuesFiles []string `split_words:"true"`
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Namespace string ``
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KubeToken string `envconfig:"KUBERNETES_TOKEN"`
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SkipTLSVerify bool `envconfig:"SKIP_TLS_VERIFY"`
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Certificate string `envconfig:"KUBERNETES_CERTIFICATE"`
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APIServer string `envconfig:"API_SERVER"`
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ServiceAccount string `envconfig:"SERVICE_ACCOUNT"` // Can't just use split_words; need envconfig to find the non-prefixed form
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// Config specifically for `helm upgrade`
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ChartVersion string `split_words:"true"` //
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DryRun bool `split_words:"true"` // also available for `delete`
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Wait bool `` //
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ReuseValues bool `split_words:"true"` //
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Timeout string `` //
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Chart string `` // Also available for `lint`, in which case it must be a path to a chart directory
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Release string ``
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Force bool `` //
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}
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type helmCommand string
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// helmCommand.Decode checks the given value against the list of known commands and generates a helpful error if the command is unknown.
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func (cmd *helmCommand) Decode(value string) error {
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known := []string{"upgrade", "delete", "lint", "help"}
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for _, c := range known {
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if value == c {
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*cmd = helmCommand(value)
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return nil
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}
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}
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if value == "" {
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return nil
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}
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known[len(known)-1] = fmt.Sprintf("or %s", known[len(known)-1])
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return fmt.Errorf("unknown command '%s'. If specified, command must be %s",
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value, strings.Join(known, ", "))
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}
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