open-nomad/command/deployment_promote.go
2020-11-20 13:38:29 -05:00

152 lines
4.1 KiB
Go

package command
import (
"fmt"
"strings"
"github.com/hashicorp/nomad/api"
"github.com/hashicorp/nomad/api/contexts"
flaghelper "github.com/hashicorp/nomad/helper/flag-helpers"
"github.com/posener/complete"
)
type DeploymentPromoteCommand struct {
Meta
}
func (c *DeploymentPromoteCommand) Help() string {
helpText := `
Usage: nomad deployment promote [options] <deployment id>
Promote is used to promote task groups in a deployment. Promotion should occur
when the deployment has placed canaries for a task group and those canaries have
been deemed healthy. When a task group is promoted, the rolling upgrade of the
remaining allocations is unblocked. If the canaries are found to be unhealthy,
the deployment may either be failed using the "nomad deployment fail" command,
the job can be failed forward by submitting a new version or failed backwards by
reverting to an older version using the "nomad job revert" command.
When ACLs are enabled, this command requires a token with the 'submit-job'
and 'read-job' capabilities for the deployment's namespace.
General Options:
` + generalOptionsUsage(usageOptsDefault) + `
Promote Options:
-group
Group may be specified many times and is used to promote that particular
group. If no specific groups are specified, all groups are promoted.
-detach
Return immediately instead of entering monitor mode. After deployment
resume, the evaluation ID will be printed to the screen, which can be used
to examine the evaluation using the eval-status command.
-verbose
Display full information.
`
return strings.TrimSpace(helpText)
}
func (c *DeploymentPromoteCommand) Synopsis() string {
return "Promote canaries in a deployment"
}
func (c *DeploymentPromoteCommand) AutocompleteFlags() complete.Flags {
return mergeAutocompleteFlags(c.Meta.AutocompleteFlags(FlagSetClient),
complete.Flags{
"-group": complete.PredictAnything,
"-detach": complete.PredictNothing,
"-verbose": complete.PredictNothing,
})
}
func (c *DeploymentPromoteCommand) AutocompleteArgs() complete.Predictor {
return complete.PredictFunc(func(a complete.Args) []string {
client, err := c.Meta.Client()
if err != nil {
return nil
}
resp, _, err := client.Search().PrefixSearch(a.Last, contexts.Deployments, nil)
if err != nil {
return []string{}
}
return resp.Matches[contexts.Deployments]
})
}
func (c *DeploymentPromoteCommand) Name() string { return "deployment promote" }
func (c *DeploymentPromoteCommand) Run(args []string) int {
var detach, verbose bool
var groups []string
flags := c.Meta.FlagSet(c.Name(), FlagSetClient)
flags.Usage = func() { c.Ui.Output(c.Help()) }
flags.BoolVar(&detach, "detach", false, "")
flags.BoolVar(&verbose, "verbose", false, "")
flags.Var((*flaghelper.StringFlag)(&groups), "group", "")
if err := flags.Parse(args); err != nil {
return 1
}
// Check that we got exactly one argument
args = flags.Args()
if l := len(args); l != 1 {
c.Ui.Error("This command takes one argument: <deployment id>")
c.Ui.Error(commandErrorText(c))
return 1
}
dID := args[0]
// Truncate the id unless full length is requested
length := shortId
if verbose {
length = fullId
}
// Get the HTTP client
client, err := c.Meta.Client()
if err != nil {
c.Ui.Error(fmt.Sprintf("Error initializing client: %s", err))
return 1
}
// Do a prefix lookup
deploy, possible, err := getDeployment(client.Deployments(), dID)
if err != nil {
c.Ui.Error(fmt.Sprintf("Error retrieving deployment: %s", err))
return 1
}
if len(possible) != 0 {
c.Ui.Error(fmt.Sprintf("Prefix matched multiple deployments\n\n%s", formatDeployments(possible, length)))
return 1
}
var u *api.DeploymentUpdateResponse
if len(groups) == 0 {
u, _, err = client.Deployments().PromoteAll(deploy.ID, nil)
} else {
u, _, err = client.Deployments().PromoteGroups(deploy.ID, groups, nil)
}
if err != nil {
c.Ui.Error(fmt.Sprintf("Error promoting deployment: %s", err))
return 1
}
// Nothing to do
evalCreated := u.EvalID != ""
if detach || !evalCreated {
return 0
}
mon := newMonitor(c.Ui, client, length)
return mon.monitor(u.EvalID)
}