107 lines
3.2 KiB
Go
107 lines
3.2 KiB
Go
package cmd
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import (
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wisski_distillery "github.com/FAU-CDI/wisski-distillery"
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"github.com/FAU-CDI/wisski-distillery/internal/component/instances"
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"github.com/FAU-CDI/wisski-distillery/internal/core"
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"github.com/FAU-CDI/wisski-distillery/pkg/logging"
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"github.com/tkw1536/goprogram/exit"
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)
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// Provision is the 'provision' command
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var Purge wisski_distillery.Command = purge{}
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type purge struct {
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Yes bool `short:"y" long:"yes" description:"Skip asking for confirmation"`
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Positionals struct {
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Slug string `positional-arg-name:"slug" required:"1-1" description:"name of WissKI Instance to purge"`
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} `positional-args:"true"`
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}
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func (purge) Description() wisski_distillery.Description {
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return wisski_distillery.Description{
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Requirements: core.Requirements{
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NeedsDistillery: true,
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},
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Command: "purge",
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Description: "Purges a WissKI Instance",
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}
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}
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var errPurgeNoDetails = exit.Error{
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Message: "Unable to find instance details for purge: %s",
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ExitCode: exit.ExitGeneric,
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}
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var errPurgeNoConfirmation = exit.Error{
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Message: "Aborting after request was not confirmed. Either type `yes` or pass `--yes` on the command line",
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ExitCode: exit.ExitGeneric,
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}
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func (p purge) Run(context wisski_distillery.Context) error {
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dis := context.Environment
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slug := p.Positionals.Slug
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// check the confirmation from the user
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if !p.Yes {
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context.Printf("About to remove repository %s. This cannot be undone.\n", slug)
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context.Printf("Type 'yes' to continue: ")
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line, err := context.ReadLine()
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if err != nil || line != "yes" {
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return errPurgeNoConfirmation
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}
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}
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// load the instance (first via bookkeeping, then via defaults)
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logging.LogMessage(context.IOStream, "Checking bookkeeping table")
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instance, err := dis.Instances().WissKI(slug)
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if err == instances.ErrWissKINotFound {
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context.Println("Not found in bookkeeping table, assuming defaults")
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instance, err = dis.Instances().Create(slug)
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}
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if err != nil {
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return errPurgeNoDetails.WithMessageF(err)
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}
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// remove docker stack
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logging.LogMessage(context.IOStream, "Stopping and removing docker container")
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if err := instance.Barrel().Down(context.IOStream); err != nil {
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context.EPrintln(err)
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}
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// remove the filesystem
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logging.LogMessage(context.IOStream, "Removing from filesystem %s", instance.FilesystemBase)
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if err := dis.Core.Environment.RemoveAll(instance.FilesystemBase); err != nil {
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context.EPrintln(err)
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}
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// purge all the instance specific resources
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if err := logging.LogOperation(func() error {
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domain := instance.Domain()
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for _, pc := range dis.Provisionable() {
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logging.LogMessage(context.IOStream, "Purging %s resources", pc.Name())
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err := pc.Purge(instance.Instance, domain)
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if err != nil {
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return err
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}
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}
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return nil
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}, context.IOStream, "Purging instance-specific resources"); err != nil {
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return errProvisionGeneric.WithMessageF(slug, err)
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}
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// remove from bookkeeping
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logging.LogMessage(context.IOStream, "Removing instance from bookkeeping")
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if err := instance.Delete(); err != nil {
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context.EPrintln(err)
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}
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logging.LogMessage(context.IOStream, "Purging instance metadata")
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if err := instance.Metadata().Purge(); err != nil {
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context.EPrintln(err)
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}
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logging.LogMessage(context.IOStream, "Instance %s has been purged", slug)
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return nil
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}
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