390 lines
12 KiB
Go
390 lines
12 KiB
Go
package command
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"os"
|
|
"regexp"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/hashicorp/nomad/api"
|
|
"github.com/hashicorp/nomad/helper/pointer"
|
|
"github.com/posener/complete"
|
|
)
|
|
|
|
var (
|
|
// enforceIndexRegex is a regular expression which extracts the enforcement error
|
|
enforceIndexRegex = regexp.MustCompile(`\((Enforcing job modify index.*)\)`)
|
|
)
|
|
|
|
type JobRunCommand struct {
|
|
Meta
|
|
JobGetter
|
|
}
|
|
|
|
func (c *JobRunCommand) Help() string {
|
|
helpText := `
|
|
Usage: nomad job run [options] <path>
|
|
Alias: nomad run
|
|
|
|
Starts running a new job or updates an existing job using
|
|
the specification located at <path>. This is the main command
|
|
used to interact with Nomad.
|
|
|
|
If the supplied path is "-", the jobfile is read from stdin. Otherwise
|
|
it is read from the file at the supplied path or downloaded and
|
|
read from URL specified.
|
|
|
|
Upon successful job submission, this command will immediately
|
|
enter an interactive monitor. This is useful to watch Nomad's
|
|
internals make scheduling decisions and place the submitted work
|
|
onto nodes. The monitor will end once job placement is done. It
|
|
is safe to exit the monitor early using ctrl+c.
|
|
|
|
On successful job submission and scheduling, exit code 0 will be
|
|
returned. If there are job placement issues encountered
|
|
(unsatisfiable constraints, resource exhaustion, etc), then the
|
|
exit code will be 2. Any other errors, including client connection
|
|
issues or internal errors, are indicated by exit code 1.
|
|
|
|
If the job has specified the region, the -region flag and NOMAD_REGION
|
|
environment variable are overridden and the job's region is used.
|
|
|
|
The run command will set the consul_token of the job based on the following
|
|
precedence, going from highest to lowest: the -consul-token flag, the
|
|
$CONSUL_HTTP_TOKEN environment variable and finally the value in the job file.
|
|
|
|
The run command will set the vault_token of the job based on the following
|
|
precedence, going from highest to lowest: the -vault-token flag, the
|
|
$VAULT_TOKEN environment variable and finally the value in the job file.
|
|
|
|
When ACLs are enabled, this command requires a token with the 'submit-job'
|
|
capability for the job's namespace. Jobs that mount CSI volumes require a
|
|
token with the 'csi-mount-volume' capability for the volume's
|
|
namespace. Jobs that mount host volumes require a token with the
|
|
'host_volume' capability for that volume.
|
|
|
|
General Options:
|
|
|
|
` + generalOptionsUsage(usageOptsDefault) + `
|
|
|
|
Run Options:
|
|
|
|
-check-index
|
|
If set, the job is only registered or updated if the passed
|
|
job modify index matches the server side version. If a check-index value of
|
|
zero is passed, the job is only registered if it does not yet exist. If a
|
|
non-zero value is passed, it ensures that the job is being updated from a
|
|
known state. The use of this flag is most common in conjunction with plan
|
|
command.
|
|
|
|
-detach
|
|
Return immediately instead of entering monitor mode. After job submission,
|
|
the evaluation ID will be printed to the screen, which can be used to
|
|
examine the evaluation using the eval-status command.
|
|
|
|
-eval-priority
|
|
Override the priority of the evaluations produced as a result of this job
|
|
submission. By default, this is set to the priority of the job.
|
|
|
|
-json
|
|
Parses the job file as JSON. If the outer object has a Job field, such as
|
|
from "nomad job inspect" or "nomad run -output", the value of the field is
|
|
used as the job.
|
|
|
|
-hcl1
|
|
Parses the job file as HCLv1. Takes precedence over "-hcl2-strict".
|
|
|
|
-hcl2-strict
|
|
Whether an error should be produced from the HCL2 parser where a variable
|
|
has been supplied which is not defined within the root variables. Defaults
|
|
to true, but ignored if "-hcl1" is also defined.
|
|
|
|
-output
|
|
Output the JSON that would be submitted to the HTTP API without submitting
|
|
the job.
|
|
|
|
-policy-override
|
|
Sets the flag to force override any soft mandatory Sentinel policies.
|
|
|
|
-preserve-counts
|
|
If set, the existing task group counts will be preserved when updating a job.
|
|
|
|
-consul-token
|
|
If set, the passed Consul token is stored in the job before sending to the
|
|
Nomad servers. This allows passing the Consul token without storing it in
|
|
the job file. This overrides the token found in $CONSUL_HTTP_TOKEN environment
|
|
variable and that found in the job.
|
|
|
|
-vault-token
|
|
Used to validate if the user submitting the job has permission to run the job
|
|
according to its Vault policies. A Vault token must be supplied if the vault
|
|
block allow_unauthenticated is disabled in the Nomad server configuration.
|
|
If the -vault-token flag is set, the passed Vault token is added to the jobspec
|
|
before sending to the Nomad servers. This allows passing the Vault token
|
|
without storing it in the job file. This overrides the token found in the
|
|
$VAULT_TOKEN environment variable and the vault_token field in the job file.
|
|
This token is cleared from the job after validating and cannot be used within
|
|
the job executing environment. Use the vault block when templating in a job
|
|
with a Vault token.
|
|
|
|
-vault-namespace
|
|
If set, the passed Vault namespace is stored in the job before sending to the
|
|
Nomad servers.
|
|
|
|
-var 'key=value'
|
|
Variable for template, can be used multiple times.
|
|
|
|
-var-file=path
|
|
Path to HCL2 file containing user variables.
|
|
|
|
-verbose
|
|
Display full information.
|
|
`
|
|
return strings.TrimSpace(helpText)
|
|
}
|
|
|
|
func (c *JobRunCommand) Synopsis() string {
|
|
return "Run a new job or update an existing job"
|
|
}
|
|
|
|
func (c *JobRunCommand) AutocompleteFlags() complete.Flags {
|
|
return mergeAutocompleteFlags(c.Meta.AutocompleteFlags(FlagSetClient),
|
|
complete.Flags{
|
|
"-check-index": complete.PredictNothing,
|
|
"-detach": complete.PredictNothing,
|
|
"-verbose": complete.PredictNothing,
|
|
"-consul-token": complete.PredictNothing,
|
|
"-vault-token": complete.PredictAnything,
|
|
"-vault-namespace": complete.PredictAnything,
|
|
"-output": complete.PredictNothing,
|
|
"-policy-override": complete.PredictNothing,
|
|
"-preserve-counts": complete.PredictNothing,
|
|
"-json": complete.PredictNothing,
|
|
"-hcl1": complete.PredictNothing,
|
|
"-hcl2-strict": complete.PredictNothing,
|
|
"-var": complete.PredictAnything,
|
|
"-var-file": complete.PredictFiles("*.var"),
|
|
"-eval-priority": complete.PredictNothing,
|
|
})
|
|
}
|
|
|
|
func (c *JobRunCommand) AutocompleteArgs() complete.Predictor {
|
|
return complete.PredictOr(
|
|
complete.PredictFiles("*.nomad"),
|
|
complete.PredictFiles("*.hcl"),
|
|
complete.PredictFiles("*.json"),
|
|
)
|
|
}
|
|
|
|
func (c *JobRunCommand) Name() string { return "job run" }
|
|
|
|
func (c *JobRunCommand) Run(args []string) int {
|
|
var detach, verbose, output, override, preserveCounts bool
|
|
var checkIndexStr, consulToken, consulNamespace, vaultToken, vaultNamespace string
|
|
var evalPriority int
|
|
|
|
flagSet := c.Meta.FlagSet(c.Name(), FlagSetClient)
|
|
flagSet.Usage = func() { c.Ui.Output(c.Help()) }
|
|
flagSet.BoolVar(&detach, "detach", false, "")
|
|
flagSet.BoolVar(&verbose, "verbose", false, "")
|
|
flagSet.BoolVar(&output, "output", false, "")
|
|
flagSet.BoolVar(&override, "policy-override", false, "")
|
|
flagSet.BoolVar(&preserveCounts, "preserve-counts", false, "")
|
|
flagSet.BoolVar(&c.JobGetter.JSON, "json", false, "")
|
|
flagSet.BoolVar(&c.JobGetter.HCL1, "hcl1", false, "")
|
|
flagSet.BoolVar(&c.JobGetter.Strict, "hcl2-strict", true, "")
|
|
flagSet.StringVar(&checkIndexStr, "check-index", "", "")
|
|
flagSet.StringVar(&consulToken, "consul-token", "", "")
|
|
flagSet.StringVar(&consulNamespace, "consul-namespace", "", "")
|
|
flagSet.StringVar(&vaultToken, "vault-token", "", "")
|
|
flagSet.StringVar(&vaultNamespace, "vault-namespace", "", "")
|
|
flagSet.Var(&c.JobGetter.Vars, "var", "")
|
|
flagSet.Var(&c.JobGetter.VarFiles, "var-file", "")
|
|
flagSet.IntVar(&evalPriority, "eval-priority", 0, "")
|
|
|
|
if err := flagSet.Parse(args); err != nil {
|
|
return 1
|
|
}
|
|
|
|
// Truncate the id unless full length is requested
|
|
length := shortId
|
|
if verbose {
|
|
length = fullId
|
|
}
|
|
|
|
// Check that we got exactly one argument
|
|
args = flagSet.Args()
|
|
if len(args) != 1 {
|
|
c.Ui.Error("This command takes one argument: <path>")
|
|
c.Ui.Error(commandErrorText(c))
|
|
return 1
|
|
}
|
|
|
|
if c.JobGetter.HCL1 {
|
|
c.JobGetter.Strict = false
|
|
}
|
|
|
|
if err := c.JobGetter.Validate(); err != nil {
|
|
c.Ui.Error(fmt.Sprintf("Invalid job options: %s", err))
|
|
return 1
|
|
}
|
|
|
|
// Get Job struct from Jobfile
|
|
job, err := c.JobGetter.Get(args[0])
|
|
if err != nil {
|
|
c.Ui.Error(fmt.Sprintf("Error getting job struct: %s", err))
|
|
return 1
|
|
}
|
|
|
|
// Get the HTTP client
|
|
client, err := c.Meta.Client()
|
|
if err != nil {
|
|
c.Ui.Error(fmt.Sprintf("Error initializing client: %s", err))
|
|
return 1
|
|
}
|
|
|
|
// Force the region to be that of the job.
|
|
if r := job.Region; r != nil {
|
|
client.SetRegion(*r)
|
|
}
|
|
|
|
// Force the namespace to be that of the job.
|
|
if n := job.Namespace; n != nil {
|
|
client.SetNamespace(*n)
|
|
}
|
|
|
|
// Check if the job is periodic or is a parameterized job
|
|
periodic := job.IsPeriodic()
|
|
paramjob := job.IsParameterized()
|
|
multiregion := job.IsMultiregion()
|
|
|
|
// Parse the Consul token
|
|
if consulToken == "" {
|
|
// Check the environment variable
|
|
consulToken = os.Getenv("CONSUL_HTTP_TOKEN")
|
|
}
|
|
|
|
if consulToken != "" {
|
|
job.ConsulToken = pointer.Of(consulToken)
|
|
}
|
|
|
|
if consulNamespace != "" {
|
|
job.ConsulNamespace = pointer.Of(consulNamespace)
|
|
}
|
|
|
|
// Parse the Vault token
|
|
if vaultToken == "" {
|
|
// Check the environment variable
|
|
vaultToken = os.Getenv("VAULT_TOKEN")
|
|
}
|
|
|
|
if vaultToken != "" {
|
|
job.VaultToken = pointer.Of(vaultToken)
|
|
}
|
|
|
|
if vaultNamespace != "" {
|
|
job.VaultNamespace = pointer.Of(vaultNamespace)
|
|
}
|
|
|
|
if output {
|
|
req := struct {
|
|
Job *api.Job
|
|
}{
|
|
Job: job,
|
|
}
|
|
buf, err := json.MarshalIndent(req, "", " ")
|
|
if err != nil {
|
|
c.Ui.Error(fmt.Sprintf("Error converting job: %s", err))
|
|
return 1
|
|
}
|
|
|
|
c.Ui.Output(string(buf))
|
|
return 0
|
|
}
|
|
|
|
// Parse the check-index
|
|
checkIndex, enforce, err := parseCheckIndex(checkIndexStr)
|
|
if err != nil {
|
|
c.Ui.Error(fmt.Sprintf("Error parsing check-index value %q: %v", checkIndexStr, err))
|
|
return 1
|
|
}
|
|
|
|
// Set the register options
|
|
opts := &api.RegisterOptions{
|
|
PolicyOverride: override,
|
|
PreserveCounts: preserveCounts,
|
|
EvalPriority: evalPriority,
|
|
}
|
|
if enforce {
|
|
opts.EnforceIndex = true
|
|
opts.ModifyIndex = checkIndex
|
|
}
|
|
|
|
// Submit the job
|
|
resp, _, err := client.Jobs().RegisterOpts(job, opts, nil)
|
|
if err != nil {
|
|
if strings.Contains(err.Error(), api.RegisterEnforceIndexErrPrefix) {
|
|
// Format the error specially if the error is due to index
|
|
// enforcement
|
|
matches := enforceIndexRegex.FindStringSubmatch(err.Error())
|
|
if len(matches) == 2 {
|
|
c.Ui.Error(matches[1]) // The matched group
|
|
c.Ui.Error("Job not updated")
|
|
return 1
|
|
}
|
|
}
|
|
|
|
c.Ui.Error(fmt.Sprintf("Error submitting job: %s", err))
|
|
return 1
|
|
}
|
|
|
|
// Print any warnings if there are any
|
|
if resp.Warnings != "" {
|
|
c.Ui.Output(
|
|
c.Colorize().Color(fmt.Sprintf("[bold][yellow]Job Warnings:\n%s[reset]\n", resp.Warnings)))
|
|
}
|
|
|
|
evalID := resp.EvalID
|
|
|
|
// Check if we should enter monitor mode
|
|
if detach || periodic || paramjob || multiregion {
|
|
c.Ui.Output("Job registration successful")
|
|
if periodic && !paramjob {
|
|
loc, err := job.Periodic.GetLocation()
|
|
if err == nil {
|
|
now := time.Now().In(loc)
|
|
next, err := job.Periodic.Next(now)
|
|
if err != nil {
|
|
c.Ui.Error(fmt.Sprintf("Error determining next launch time: %v", err))
|
|
} else {
|
|
c.Ui.Output(fmt.Sprintf("Approximate next launch time: %s (%s from now)",
|
|
formatTime(next), formatTimeDifference(now, next, time.Second)))
|
|
}
|
|
}
|
|
} else if !paramjob {
|
|
c.Ui.Output("Evaluation ID: " + evalID)
|
|
}
|
|
|
|
return 0
|
|
}
|
|
|
|
// Detach was not specified, so start monitoring
|
|
mon := newMonitor(c.Ui, client, length)
|
|
return mon.monitor(evalID)
|
|
|
|
}
|
|
|
|
// parseCheckIndex parses the check-index flag and returns the index, whether it
|
|
// was set and potentially an error during parsing.
|
|
func parseCheckIndex(input string) (uint64, bool, error) {
|
|
if input == "" {
|
|
return 0, false, nil
|
|
}
|
|
|
|
u, err := strconv.ParseUint(input, 10, 64)
|
|
return u, true, err
|
|
}
|