86 lines
2.1 KiB
Plaintext
86 lines
2.1 KiB
Plaintext
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---
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layout: docs
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page_title: 'Commands: alloc checks'
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description: |
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Outputs service health check status information.
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---
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# Command: alloc checks
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The `alloc checks` command outputs the latest health check status information for checks in the allocation.
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## Usage
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```plaintext
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nomad alloc checks [options] <allocation>
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```
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Outputs the latest health check status information for services in the allocation
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using the Nomad service discovery provider. This command accepts an allocation
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ID or prefix as the sole argument.
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When ACLs are enabled, this command requires a token with the 'read-job' capability
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for the allocation's namespace. The 'list-jobs' capability is required to run the
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command with an allocation ID prefix instead of the exact allocation ID.
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## General Options
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@include 'general_options.mdx'
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## Checks Options
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- `-verbose`: Display verbose output.
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- `-json`: Output the allocation in its JSON format.
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- `-t`: Format and display the health checks status using a Go template.
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## Examples
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Show checks of an alloc health check using its short ID:
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```shell-session
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$ nomad alloc checks e0fdbd85
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Status of 1 Nomad Service Checks
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ID = 9f4e18fd0867cebb19a8fac3d7a1cf27
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Name = alive
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Group = example.cache[0]
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Task = (group)
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Service = redis-cache
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Status = success
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Mode = healthiness
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Timestamp = 2023-03-09T16:10:23+01:00
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Output = nomad: tcp ok
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```
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The `-json` flag can be used to get the health checks status in json format:
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```shell-session
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nomad alloc checks -json 54fde4f8
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{
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"9810e90177a4c21ce3bfe04dc7da6131": {
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"Check": "alive",
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"Group": "example.cache[0]",
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"ID": "9810e90177a4c21ce3bfe04dc7da6131",
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"Mode": "healthiness",
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"Output": "nomad: tcp ok",
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"Service": "redis-cache",
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"Status": "success",
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"StatusCode": 0,
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"Task": "",
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"Timestamp": 1678444309
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}
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}
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```
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Or use the `-t` flag to format and display the health checks using a Go template:
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```shell-session
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$ nomad alloc checks -t '{{range .}}{{ printf "%s: %s\n" .ID .Status }}{{end}}' 54
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9810e90177a4c21ce3bfe04dc7da6131: success
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```
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