Configuration status troubleshooting

Tetrate Service Bridge’s tctl CLI lets you interact with the TSB API to apply objects’s configurations. This document describes how to use tctl to understand what’s the deployment status of a resource configuration within the system.

Resource Status

TSB tracks the lifecycle of configuration changes as ResourceStatus. You can fetch them using tctl x status. Run tctl x status --help to see all the possible options.

There are different types of resources, depending on how their configuration status is computed.

Resource Type Configuration Status Examples
Parent Aggregate the status of their children resources. workspace, trafficgroup, gatewaygroup, securitygroup
Child Does not depend on other resources. ingressgateway, egressgateway, trafficsettings, etc
Non-configurable Do not get directly materialized as configurations in the target cluster. organizations, tenants, users
With dependencies High-level resources. applications and apis

A resource status can have several values, depending on on how far its configuration has been propagated across the TSB components.

Type Status Condition
Child and non-configurable ACCEPTED Their configuration has been validated and persisted. This is the initial value for valid configurations.
READY Their configuration have been propagated to all the destination clusters. This is also the default state for non-configurable resources.
PARTIAL Some of their configuration are ready in some destination clusters, but not in all of them.
FAILED Their configuration has triggered some internal error in some, or all, destination clusters.
FAILED An offending resource in a destination clusters affects the correct behaviour of the configuration.
Parent ACCEPTED All their children resources either ACCEPTED or READY.
READY All their children resources READY.
FAILED Any of their children has FAILED.
With dependencies ACCEPTED All their dependent configurations are ACCEPTED.
READY All their dependent configurations are READY.
DIRTY All their dependent configurations are DIRTY.
FAILED Any of their dependent configurations are FAILED.
PARTIAL Their dependent configurations are in a mix of READY, ACCEPTED and/or DIRTY.

You can read more about the status types in the Status API spec.

Using tctl to understand the status of config objects

Let’s see some examples in a scenario where the bookinfo app is deployed.

:::note We assume the Bookinfo application has been deployed in its own workspace, as in our Quick Start tutorials, and has been configured with the corresponding groups. :::

You can check the status of the bookinfo ingress gateway with tctl x status:

$ tctl x status ig --tenant tetrate --workspace bookinfo --gatewaygroup bookinfo bookinfo
NAME        STATUS      LAST EVENT      MESSAGE
bookinfo    ACCEPTED    XCP_ACCEPTED

This shows that its configuration has been validated and persisted.

If you want further information, its yaml version will show you the history of events of this resource status. This information is very useful for troubleshooting the lifecycle of a resource configuration.

$ tctl x status ig --tenant tetrate --workspace bookinfo --gatewaygroup bookinfo bookinfo
apiVersion: api.tsb.tetrate.io/v2
kind: ResourceStatus
metadata:
  group: bookinfo
  name: bookinfo
  organization: tetrate
  tenant: tetrate
  workspace: bookinfo
spec:
  configEvents:
    events:
    - etag: '"sMlEWPbvm6M="'
      timestamp: "2022-02-10T16:54:14.710165091Z"
      type: XCP_ACCEPTED
    - etag: '"sMlEWPbvm6M="'
      timestamp: "2022-02-10T16:54:14.649002805Z"
      type: MPC_ACCEPTED
    - etag: '"sMlEWPbvm6M="'
      timestamp: "2022-02-10T16:54:10.453242255Z"
      type: TSB_ACCEPTED
  status: ACCEPTED

Here you can see the historic of events that changed the status of the last version sMlEWPbvm6M= of this ingressgateway resource, most recent first.

In this example, the resource was initially accepted by TSB Server, then by MPC and finally by the XCP component.

Note that just the historic of the latest resource version is persisted. In the following section your will learn how to use Audit Logs to display the historic for all the versions.

Using the TSB audit logs to understand the lifecycle of config objects

TSB has the notion of audit logs that show everything that happens to a TSB resource. Who did what and when, on each resource, and it also gives insights on the different stages of its config.

For example, you could use the following command to get a list of all the events that happened on the bookinfo workspace and all the resources contained in it.

$ tctl x audit ws bookinfo --recursive --text bookinfo
TIME                   SEVERITY    TYPE                                        OPERATION               USER     MESSAGE
2022/02/10 17:02:53    INFO        api.tsb.tetrate.io/v2/ResourceStatus        XCP_CENTRAL_ACCEPTED    mpc      New ACCEPTED status due to XCP_CENTRAL_ACCEPTED event for trafficgroup "bookinfo" version "oxil15u6bfw="
2022/02/10 17:02:53    INFO        api.tsb.tetrate.io/v2/ResourceStatus        XCP_CENTRAL_ACCEPTED    mpc      New ACCEPTED status due to XCP_CENTRAL_ACCEPTED event for securitygroup "bookinfo" version "gEUA3cK7+YI="
2022/02/10 17:02:52    INFO        api.tsb.tetrate.io/v2/ResourceStatus        MPC_ACCEPTED            mpc      New ACCEPTED status due to MPC_ACCEPTED event for ingressgateway "bookinfo" version "sMlEWPbvm6M="
2022/02/10 17:02:52    INFO        api.tsb.tetrate.io/v2/ResourceStatus        MPC_ACCEPTED            mpc      New ACCEPTED status due to MPC_ACCEPTED event for trafficgroup "bookinfo" version "oxil15u6bfw="
2022/02/10 17:02:52    INFO        api.tsb.tetrate.io/v2/ResourceStatus        XCP_CENTRAL_ACCEPTED    mpc      New ACCEPTED status due to XCP_CENTRAL_ACCEPTED event for workspace "bookinfo" version "GBcgtWe3R80="
2022/02/10 17:02:52    INFO        api.tsb.tetrate.io/v2/ResourceStatus        XCP_CENTRAL_REJECTED    mpc      New ACCEPTED status due to XCP_CENTRAL_ACCEPTED event for gatewaygroup "bookinfo" version "y6q054gFZCQ="
2022/02/10 17:02:52    INFO        api.tsb.tetrate.io/v2/ResourceStatus        MPC_ACCEPTED            mpc      New ACCEPTED status due to MPC_ACCEPTED event for securitygroup "bookinfo" version "gEUA3cK7+YI="
2022/02/10 17:02:52    INFO        api.tsb.tetrate.io/v2/ResourceStatus        MPC_ACCEPTED            mpc      New ACCEPTED status due to MPC_ACCEPTED event for workspace "bookinfo" version "GBcgtWe3R80="
2022/02/10 17:02:52    INFO        api.tsb.tetrate.io/v2/ResourceStatus        MPC_ACCEPTED            mpc      New ACCEPTED status due to MPC_ACCEPTED event for gatewaygroup "bookinfo" version "y6q054gFZCQ="
2022/02/10 17:02:48    INFO        gateway.tsb.tetrate.io/v2/IngressGateway    create                  admin    Create IngressGateway "bookinfo" by "admin"

Some errors are identified in the audit logs that you can further inspect by retrieving the details of the config status for those objects:

$ tctl x status ig --workspace bookinfo --gatewaygroup bookinfo bookinfo
NAME        STATUS    LAST EVENT              MESSAGE
bookinfo    FAILED    XCP_CENTRAL_REJECTED    admission webhook "central-validation.xcp.tetrate.io" denied the request: configuration is invalid: domain name "tetrate.io---" invalid (label "io---" invalid)

As you can see in the command output, the configuration has been rejected by the XCP component and flagged as invalid, and it will not be propagated to the target clusters.

You can also get insights by querying the status of the workspace. It will show any errors in its child resources. This way it is very easy to navigate from any workspace or top-level element to the specific errors that configuration objects may present.

$ tctl x status ws bookinfo
NAME        STATUS    LAST EVENT    MESSAGE
bookinfo    FAILED                  The following children are failing: organizations/tetrate/tenants/tetrate/workspaces/bookinfo/gatewaygroups/bookinfo

Or its extended yaml version:

$ tctl x status ws bookinfo -o yaml
apiVersion: api.tsb.tetrate.io/v2
kind: ResourceStatus
metadata:
  name: bookinfo
  organization: tetrate
  tenant: tetrate
spec:
  aggregatedStatus:
    children:
      organizations/tetrate/tenants/tetrate/workspaces/bookinfo/gatewaygroups/bookinfo:
        message: 'The following children resources have issues: organizations/tetrate/tenants/tetrate/workspaces/bookinfo/gatewaygroups/bookinfo/ingressgateways/bookinfo'
        status: FAILED
      organizations/tetrate/tenants/tetrate/workspaces/bookinfo/securitygroups/bookinfo:
        status: ACCEPTED
      organizations/tetrate/tenants/tetrate/workspaces/bookinfo/trafficgroups/bookinfo:
        status: ACCEPTED
    configEvents:
      events:
      - etag: '"GBcgtWe3R80="'
        timestamp: "2022-02-10T18:32:29.593869622Z"
        type: XCP_ACCEPTED
      - etag: '"GBcgtWe3R80="'
        timestamp: "2022-02-10T18:32:29.576374660Z"
        type: MPC_ACCEPTED
      - etag: '"GBcgtWe3R80="'
        timestamp: "2022-02-10T18:32:24.679197258Z"
        type: TSB_ACCEPTED
  message: 'The following children resources have issues: organizations/tetrate/tenants/tetrate/workspaces/bookinfo/gatewaygroups/bookinfo'
  status: FAILED

Finally, audit logs help easily identify when config issues were introduced and the exact changes that have been applied at any point in time. Here you can clearly see that an update for admin triggered a change in the config resource that was rejected, and you can see the exact fields that were changed, causing the issue:

$ tctl x audit ig --workspace bookinfo --gatewaygroup bookinfo bookinfo
TIME                   SEVERITY    TYPE                                        OPERATION               USER     MESSAGE
2022/02/10 22:04:14    INFO        api.tsb.tetrate.io/v2/ResourceStatus        XCP_CENTRAL_REJECTED    mpc      New FAILED status due to XCP_CENTRAL_REJECTED event for ingressgateway "bookinfo" version "O0HhTEHkvjA="
2022/02/10 22:04:14    INFO        api.tsb.tetrate.io/v2/ResourceStatus        MPC_ACCEPTED            mpc      New ACCEPTED status due to MPC_ACCEPTED event for ingressgateway "bookinfo" version "O0HhTEHkvjA="
2022/02/10 22:04:12    INFO        gateway.tsb.tetrate.io/v2/IngressGateway    update                  admin    Update IngressGateway "bookinfo" by "admin"
2021/11/25 16:02:53    INFO        api.tsb.tetrate.io/v2/ResourceStatus        XCP_CENTRAL_ACCEPTED    mpc      New ACCEPTED status due to XCP_CENTRAL_ACCEPTED event for ingressgateway "bookinfo" version "sMlEWPbvm6M="
2021/11/25 16:02:52    INFO        api.tsb.tetrate.io/v2/ResourceStatus        MPC_ACCEPTED            mpc      New ACCEPTED status due to MPC_ACCEPTED event for ingressgateway "bookinfo" version "sMlEWPbvm6M="
2021/11/25 16:02:48    INFO        gateway.tsb.tetrate.io/v2/IngressGateway    create                  admin    Create IngressGateway "bookinfo" by "admin"

Displaying the yaml with a date filter will output:

$ tctl x audit ig --workspace bookinfo --gatewaygroup bookinfo bookinfo --operation update --since "2022/02/10 22:04:12" -o yaml
apiVersion: audit.tetrate.io/v1
kind: AuditLog
metadata: {}
spec:
  createTime: "2021-12-13T22:11:32Z"
  fqn: organizations/tetrate/tenants/tetrate/workspaces/bookinfo/gatewaygroups/bookinfo/ingressgateways/bookinfo
  kind: gateway.tsb.tetrate.io/v2/IngressGateway
  message: Update IngressGateway "bookinfo" by "admin"
  operation: update
  properties:
    diff: |2-
       {
        Fqn: "organizations/tetrate/tenants/tetrate/workspaces/bookinfo/gatewaygroups/bookinfo/ingressgateways/bookinfo",
      - Etag: "\"sMlEWPbvm6M=\"",
      + Etag: "\"O0HhTEHkvjA=\"",
        WorkloadSelector: {
         Namespace: "bookinfo",
         Labels: {
          app: "bookinfo-gateway",
         },
        },
        Http: [
         {
      -   Name: "productpage",
      +   Name: "productpage-invalid",
          Port: 80,
      -   Hostname: "bookinfo.tetrate.io",
      +   Hostname: "bookinfo.tetrate.io=--",
          Routing: {
           Rules: [
            {
             RouteOrRedirect: {
              Route: {
               Host: "bookinfo/productpage.bookinfo.svc.cluster.local",
               Port: 9080,
              },
             },
            },
           ],
          },
         },
        ],
       }
    display-name: ""
    etag: '"O0HhTEHkvjA="'
    fqn: organizations/tetrate/tenants/tetrate/workspaces/bookinfo/gatewaygroups/bookinfo/ingressgateways/bookinfo
  severity: INFO
  triggeredBy: admin

You can easily see in a diff format the exact fields that were changed.

Summary

  • You can use the config status commands to get status details and errors on individual resources.
  • You can use it as well on top-level resources to quickly identify offending resources down the hierarchy.
  • You can use the audit logs to have a global view of all events that happened on any TSB resource.
  • You can correlate those audit logs with the configuration statuses.
  • Audit logs give you details on the exact changes that were made to any resource.
TSB

最近更新于 2023-09-19