new docs for consul and consul-k8s troubleshoot command

pull/16284/head
Maliz 2 years ago
parent 6599a9be1d
commit ba5560c2a2

@ -0,0 +1,33 @@
---
layout: commands
page_title: 'Commands: Troubleshoot'
description: |
The `consul troubleshoot` provides tools to troubleshoot Consul's service mesh configuration.
---
# Consul Troubleshooting
Command: `consul troubleshoot`
Use the `troubleshoot` command to diagnose Consul service mesh configuration or network issues.
## Usage
```text
Usage: consul troubleshoot <subcommand> [options]
# ...
Subcommands:
Subcommands:
proxy Troubleshoots service mesh issues from the current envoy instance
upstreams Get upstream envoy identifiers for the current envoy instance
```
For more information, examples, and usage about a subcommand, click on the name
of the subcommand in the sidebar or one of the links below:
- [proxy](/consul/commands/troubleshoot/proxy)
- [upstreams](/consul/commands/troubleshoot/upstreams)

@ -0,0 +1,59 @@
---
layout: commands
page_title: 'Commands: Troubleshoot Proxy'
description: |
The `consul troubleshoot proxy` diagnoses Consul service mesh configuration and network issues to an upstream.
---
# Consul Troubleshoot Proxy
Command: `consul troubleshoot proxy`
## Usage
Usage: `consul troubleshoot proxy (-upstream-ip <ip>|-upstream-envoy-id <envoy-id>) [options]
#### Command Options
- `-envoy-admin-endpoint=<value>` - Envoy Admin endpoint address for the local Envoy instance.
Defaults to `127.0.0.1:19000`.
- `-upstream-ip=<value>` - The IP address of the upstream transparent proxy.
- `-upstream-envoy-id=<value>` - The Envoy identifier of the upstream service to be troubleshooted.
## Examples
Troubleshoot Consul service mesh configuration and network issues from the current Envoy instance.
```shell-session hideClipboard
$ consul troubleshoot proxy -upstream-ip 10.4.6.160
==> Validation
✓ certificates are valid
✓ Envoy has 0 rejected configurations
✓ Envoy has detected 0 connection failure(s)
✓ listener for upstream "backend" found
✓ route for upstream "backend" found
✓ cluster "backend.default.dc1.internal..consul" for upstream "backend" found
✓ healthy endpoints for cluster "backend.default.dc1.internal.e08fa6d6-e91e-dfe0-f6e1-ba097a828e31.consul" for upstream "backend" found
✓ cluster "backend2.default.dc1.internal..consul" for upstream "backend" found
! no healthy endpoints for cluster "backend2.default.dc1.internal.e08fa6d6-e91e-dfe0-f6e1-ba097a828e31.consul" for upstream "backend" found
```
Troubleshoot Consul service mesh configuration and network issues from the current Envoy instance to the given upstream Envoy identifier.
```shell-session
$ consul-k8s troubleshoot proxy -upstream-envoy-id db
```
```
==> Validation
✓ certificates are valid
✓ Envoy has 0 rejected configurations
✓ Envoy has detected 0 connection failure(s)
! no listener for upstream "db" found
! no route for upstream "backend" found
! no cluster "db.default.dc1.internal.e08fa6d6-e91e-dfe0-f6e1-ba097a828e31.consul" for upstream "db" found
! no healthy endpoints for cluster "db.default.dc1.internal.e08fa6d6-e91e-dfe0-f6e1-ba097a828e31.consul" for upstream "db" found
```

@ -0,0 +1,36 @@
---
layout: commands
page_title: 'Commands: Troubleshoot Upstreams'
description: |
The `consul troubleshoot upstream` lists the available upstreams in the Consul service mesh from the current service.
---
# Consul Troubleshoot Upstreams
Command: `consul troubleshoot upstreams`
## Usage
Usage: `consul troubleshoot upstreams [options]
#### Command Options
- `-envoy-admin-endpoint=<value>` - Envoy Admin endpoint address for the local Envoy instance.
Defaults to `127.0.0.1:19000`.
## Examples
Display all transparent proxy upstreams in Consul service mesh from the current Envoy instance.
```shell-session hideClipboard
$ consul troubleshoot upstreams
==> Upstreams (explicit upstreams only) (0)
==> Upstreams IPs (transparent proxy only) (1)
[10.4.6.160 240.0.0.3] true map[backend.default.dc1.internal.e08fa6d6-e91e-dfe0-f6e1-ba097a828e31.consul backend2.default.dc1.internal.e08fa6d6-e91e-dfe0-f6e1-ba097a828e31.consul]
If you don't see your upstream address or cluster for a transparent proxy upstream:
- Check intentions: Tproxy upstreams are configured based on intentions, make sure you have configured intentions to allow traffic to your upstream.
- You can also check that the right cluster is being dialed by running a DNS lookup for the upstream you are dialing (i.e dig backend.svc.consul). If the address you get from that is missing from the Upstream IPs your proxy may be misconfigured.
```

@ -33,6 +33,7 @@ You can use the following commands with `consul-k8s`.
- [`proxy list`](#proxy-list): List all Pods running proxies managed by Consul.
- [`proxy read`](#proxy-read): Inspect the Envoy configuration for a given Pod.
- [`status`](#status): Check the status of a Consul installation on Kubernetes.
- [`troubleshoot`](#troubleshoot): Troubleshoot Consul service mesh and networking issues from a given pod.
- [`uninstall`](#uninstall): Uninstall Consul deployment.
- [`upgrade`](#upgrade): Upgrade Consul on Kubernetes from an existing installation.
- [`version`](#version): Print the version of the Consul on Kubernetes CLI.
@ -490,6 +491,115 @@ $ consul-k8s status
✓ Consul clients healthy (3/3)
```
### `troubleshoot`
The `troubleshoot` command exposes two subcommand for troubleshooting Consul
service mesh and network issues from a given pod.
- [`troubleshoot upstreams`](#troubleshoot-upstreams): List all Envoy upstreams in Consul service mesh from the given pod.
- [`troubleshoot proxy`](#troubleshoot-proxy): Troubleshoot Consul service mesh configuration and network issues from the given pod to the given upstream.
### `troubleshoot upstreams`
```shell-session
$ consul-k8s troubleshoot upstreams -pod <pod> <OPTIONS>
```
| Flag | Description | Default |
| ------------------------------------ | ----------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------- |
| <nobr>`-namespace`, `-n`</nobr> | `String` The Kubernetes namespace to list proxies in. | Current [kubeconfig](https://kubernetes.io/docs/concepts/configuration/organize-cluster-access-kubeconfig/) namespace. |
| <nobr>`-envoy-admin-endpoint`</nobr> | `String` Envoy sidecar address and port | `127.0.0.1:19000` |
#### Example Commands
Display all transparent proxy upstreams in Consul service mesh from the given pod.
```shell-session
$ consul-k8s troubleshoot upstreams -pod frontend-767ccfc8f9-6f6gx
```
```
==> Upstreams (explicit upstreams only) (0)
==> Upstreams IPs (transparent proxy only) (1)
[10.4.6.160 240.0.0.3] true map[backend.default.dc1.internal.e08fa6d6-e91e-dfe0-f6e1-ba097a828e31.consul backend2.default.dc1.internal.e08fa6d6-e91e-dfe0-f6e1-ba097a828e31.consul]
If you don't see your upstream address or cluster for a transparent proxy upstream:
- Check intentions: Tproxy upstreams are configured based on intentions, make sure you have configured intentions to allow traffic to your upstream.
- You can also check that the right cluster is being dialed by running a DNS lookup for the upstream you are dialing (i.e dig backend.svc.consul). If the address you get from that is missing from the Upstream IPs your proxy may be misconfigured.
```
Display all explicit upstreams in Consul service mesh from the given pod.
```shell-session
$ consul-k8s troubleshoot upstreams -pod client-767ccfc8f9-6f6gx
```
```
==> Upstreams (explicit upstreams only) (1)
server
counting
==> Upstreams IPs (transparent proxy only) (0)
If you don't see your upstream address or cluster for a transparent proxy upstream:
- Check intentions: Tproxy upstreams are configured based on intentions, make sure you have configured intentions to allow traffic to your upstream.
- You can also check that the right cluster is being dialed by running a DNS lookup for the upstream you are dialing (i.e dig backend.svc.consul). If the address you get from that is missing from the Upstream IPs your proxy may be misconfigured.
```
### `troubleshoot proxy`
```shell-session
$ consul-k8s troubleshoot proxy -pod <pod> -upstream-ip <ip> <OPTIONS>
$ consul-k8s troubleshoot proxy -pod <pod> -upstream-envoy-id <envoy-id> <OPTIONS>
```
| Flag | Description | Default |
| ------------------------------------ | ----------------------------------------------------------| ---------------------------------------------------------------------------------------------------------------------- |
| <nobr>`-namespace`, `-n`</nobr> | `String` The Kubernetes namespace to list proxies in. | Current [kubeconfig](https://kubernetes.io/docs/concepts/configuration/organize-cluster-access-kubeconfig/) namespace. |
| <nobr>`-envoy-admin-endpoint`</nobr> | `String` Envoy sidecar address and port | `127.0.0.1:19000` |
| <nobr>`-upstream-ip`</nobr> | `String` The IP address of the upstream transparent proxy | |
| <nobr>`-upstream-envoy-id`</nobr> | `String` The Envoy identifier of the upstream | |
#### Example Commands
Troubleshoot Consul service mesh configuration and network issues from the given pod to the given upstream IP.
```shell-session
$ consul-k8s troubleshoot proxy -pod frontend-767ccfc8f9-6f6gx -upstream-ip 10.4.6.160
```
```
==> Validation
✓ certificates are valid
✓ Envoy has 0 rejected configurations
✓ Envoy has detected 0 connection failure(s)
✓ listener for upstream "backend" found
✓ route for upstream "backend" found
✓ cluster "backend.default.dc1.internal..consul" for upstream "backend" found
✓ healthy endpoints for cluster "backend.default.dc1.internal.e08fa6d6-e91e-dfe0-f6e1-ba097a828e31.consul" for upstream "backend" found
✓ cluster "backend2.default.dc1.internal..consul" for upstream "backend" found
! no healthy endpoints for cluster "backend2.default.dc1.internal.e08fa6d6-e91e-dfe0-f6e1-ba097a828e31.consul" for upstream "backend" found
```
Troubleshoot Consul service mesh configuration and network issues from the given pod to the given upstream Envoy identifier.
```shell-session
$ consul-k8s troubleshoot proxy -pod frontend-767ccfc8f9-6f6gx -upstream-envoy-id db
```
```
==> Validation
✓ certificates are valid
✓ Envoy has 0 rejected configurations
✓ Envoy has detected 0 connection failure(s)
! no listener for upstream "db" found
! no route for upstream "backend" found
! no cluster "db.default.dc1.internal.e08fa6d6-e91e-dfe0-f6e1-ba097a828e31.consul" for upstream "db" found
! no healthy endpoints for cluster "db.default.dc1.internal.e08fa6d6-e91e-dfe0-f6e1-ba097a828e31.consul" for upstream "db" found
```
### `uninstall`
The `uninstall` command removes Consul from Kubernetes.

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