RootSync and RepoSync fields

This page explains the different fields that you can see in your RootSync and RepoSync objects. You can use these objects when you are configuring syncing from multiple repositories.

It also includes details on the ResourceGroup, which is created when you enable multi-repo mode.

The following diagram shows you an overview of how Config Sync creates these resources:

Operator actuation

Once it's created, the Reconciler Manager handles controlling the lifecycle of the Root Reconciler and each Namespace Reconciler process:

Reconciler actuation

RootSync and RepoSync fields

RootSync and RepoSync CRDs use the same fields with the exception of spec.sourceFormat. For RepoSync CRDs, spec.sourceFormat must be unstructured and the default is also unstructured.

Configuration for the Git repository

Key Description
spec.git.auth The type of Secret configured for access to the Git repo. Must be ssh, cookiefile, gcenode, gcpserviceaccount, token, or none. The validation of this field is case-sensitive. Required.
spec.git.gcpServiceAccountEmail The Google Cloud service account used to annotate the RootSync or RepoSync controller's Kubernetes Service Account. This field is only used when spec.git.auth is gcpserviceaccount.
spec.git.branch The Git branch of the repository to sync from. Default: master.
spec.git.dir The absolute path in the Git repository to the root directory that contains the configuration that you want to sync. Default: the root directory (/) of the repository.
spec.git.period The time duration between consecutive syncs. Default: 15s.
spec.git.repo The Git repository URL to sync from. Required.
spec.git.revision The Git revision (tag, commit, or hash) to check out. Default: HEAD.
spec.git.secretRef.name The name of the Secret used to connect to the Git source of truth.
spec.sourceFormat The format of your Git repository
For RootSync objects: Can be unstructured or hierarchy. Default: hierarchy.
For RepoSync objects: Must be unstructured. Default: unstructured.
spec.git.noSSLVerify noSSLVerify specifies whether to enable or disable the SSL certificate verification. Default: false.
If noSSLVerify is set to true, it tells Git to skip the SSL certificate verification.
This field is supported in Anthos Config Management version 1.8.2 and later.

Proxy configuration for the Git repository

If your organization's security policies require you to route traffic through an HTTP(S) proxy, you can use the proxy's URI to configure Config Sync to communicate with your Git host.

Key Description
spec.git.proxy The proxy URL with scheme for configuring access to the Git repo using a proxy. For example, https://proxy.internal.business.co:443. This field only has an effect when spec.git.auth is cookiefile or none.

Configuration for overriding the resource limits of a root or namespace reconciler

Key Description
spec.override.resources The list of container resource limit overrides. Optional.
Each item in the list contains three fields:
  • containerName: this field can be either git-sync or reconciler.
  • cpuLimit (optional)
  • memoryLimit (optional)

When an override value for a resource limit isn't provided, the default resource limit is used.

Configuration for the number of Git commits to fetch

Key Description
spec.override.gitSyncDepth gitSyncDepth lets you to override the number of Git commits to fetch.
Must be no less than 0.
Config Sync does a full clone if this field is 0, and a shallow clone if this field is greater than 0.
If this field is not provided, Config Sync configures it automatically.

Status of the objects

Key Description
status.observedGeneration The generation (metadata.generation) of the spec of a RootSync or RepoSync resource that was last observed and acted on by Config Sync. This value can be compared with metadata.generation, which is an integer and is updated on spec mutation by the API server.
status.reconciler The name of the reconciler process which corresponds to the sync resource.
status.source.gitStatus.repo The Git repository URL being synced.
status.source.gitStatus.revision The Git revision (tag, commit, or hash) being fetched.
status.source.gitStatus.branch The Git branch of the repository being fetched.
status.source.gitStatus.dir The absolute path in the Git repository to the root directory that contains the configuration that you are syncing to.
status.source.commit The hash of the most recent commit seen in the repository.
status.source.errors A list of any errors that occurred while reading from the repository.
status.sync.commit The hash of the most recent commit that was synced to the cluster. This value is updated even when a commit is only partially synced due to an error.
status.sync.errors A list of any errors that occurred while applying the resources from the change indicated by status.sync.commit.
status.conditions The latest available observations of the RootSync's current state.

ResourceGroup fields

For each Git repository synced to the cluster, the reconciliation status of all resources are aggregated in a resource called ResourceGroup. Config Sync automatically generates the ResourceGroup custom resource (CR). You don't need to declare it and modifying the ResourceGroup CRs generated by Config Sync can cause unexpected failure of Config Sync.

Spec and status fields

Key Description
spec.resources The list of identifiers (Group, Kind, Namespace, Name) for resources that are applied to the cluster from the Git repository that is specified in a RepoSync CR or a RootSync CR. Optional.
Each item in the list contains four fields: group, kind, namespace, and name.

Status fields

Key Description
status.observedGeneration The generation (metadata.generation) of the spec of a RootSync or RepoSync resource that was last observed and acted on by ResourceGroup controller. This value can be compared with metadata.generation, which is an integer and is updated on spec mutation by the API server.
status.conditions The latest observed conditions for the current ResourceGroup. The conditions have two different types: Reconciling and Stalled. When the Reconciling type condition is true, it means the current ResourceGroup is in reconciliation. When the Stalled type condition is true, it means that the reconciliation is stalled. When both are false, it means the current ResourceGroup is reconciled and the status is up to date.
status.resourceStatuses The list of statuses for resources that are included in `.spec.resources`. Each item contains the identifier (Group, Kind, Namespace, or Name) and status of a resource. The status is one of: InProgress, Current, Failed, Terminating, NotFound, or Unknown.

Example CRs

The following sections show you examples of RootSync and Reposync CRs .

RootSync CR

The following CR was generated by using kubectl describe rootsync root-sync -n config-management-system.

Name:         root-sync
Namespace:    config-management-system
Labels:       <none>
Annotations:  configmanagement.gke.io/managed-by-hub: true
              configmanagement.gke.io/update-time: 1623779339
API Version:  configsync.gke.io/v1beta1
Kind:         RootSync
Metadata:
  Creation Timestamp:  2021-06-15T17:49:35Z
  Generation:          1
  Managed Fields:
    API Version:  configsync.gke.io/v1beta1
    Fields Type:  FieldsV1
    fieldsV1:
      f:metadata:
        f:annotations:
          .:
          f:configmanagement.gke.io/managed-by-hub:
          f:configmanagement.gke.io/update-time:
      f:spec:
        .:
        f:git:
          .:
          f:auth:
          f:branch:
          f:dir:
          f:period:
          f:repo:
          f:secretRef:
        f:sourceFormat:
    Manager:      Google-GKEHub-Controllers-ACM
    Operation:    Update
    Time:         2021-06-15T17:49:35Z
    API Version:  configsync.gke.io/v1alpha1
    Fields Type:  FieldsV1
    fieldsV1:
      f:status:
        .:
        f:conditions:
        f:observedGeneration:
        f:reconciler:
        f:source:
          .:
          f:gitStatus:
        f:sync:
    Manager:      reconciler-manager
    Operation:    Update
    Time:         2021-06-15T17:49:47Z
    API Version:  configsync.gke.io/v1alpha1
    Fields Type:  FieldsV1
    fieldsV1:
      f:status:
        f:source:
          f:commit:
          f:gitStatus:
            f:branch:
            f:dir:
            f:repo:
            f:revision:
        f:sync:
          f:commit:
          f:lastUpdate:
    Manager:         reconciler
    Operation:       Update
    Time:            2021-06-15T17:51:28Z
  Resource Version:  4850
  Self Link:         /apis/configsync.gke.io/v1beta1/namespaces/config-management-system/rootsyncs/root-sync
  UID:               3fd2ea19-7e16-4c69-a3a1-90b9d90677eb
Spec:
  Git:
    Auth:    none
    Branch:  init
    Dir:     quickstart/multirepo/root
    Period:  0s
    Repo:    https://github.com/GoogleCloudPlatform/anthos-config-management-samples
    Secret Ref:
  Source Format:  unstructured
Status:
  Conditions:
    Last Transition Time:  2021-06-15T17:50:15Z
    Last Update Time:      2021-06-15T17:50:15Z
    Status:                False
    Type:                  Reconciling
  Observed Generation:     1
  Reconciler:              root-reconciler
  Source:
    Commit:  a9b7593b2df5f64b1ae5e5eb2d9cafa619029589
    Git Status:
      Branch:    init
      Dir:       quickstart/multirepo/root
      Repo:      https://github.com/GoogleCloudPlatform/anthos-config-management-samples
      Revision:  HEAD
  Sync:
    Commit:       a9b7593b2df5f64b1ae5e5eb2d9cafa619029589
    Last Update:  2021-06-15T17:51:28Z
Events:           <none>

RepoSync CR

The following CR was generated by using kubectl describe reposync repo-sync -n config-management-system.

Name:         repo-sync
Namespace:    gamestore
Labels:       app.kubernetes.io/managed-by=configmanagement.gke.io
              configsync.gke.io/declared-version=v1alpha1
Annotations:  config.k8s.io/owning-inventory: config-management-system_root-sync
              configmanagement.gke.io/cluster-name: cs-cluster-1
              configmanagement.gke.io/managed: enabled
              configmanagement.gke.io/source-path: quickstart/multirepo/root/reposync-gamestore.yaml
              configmanagement.gke.io/token: a9b7593b2df5f64b1ae5e5eb2d9cafa619029589
              configsync.gke.io/declared-fields: {"f:spec":{}}
              configsync.gke.io/git-context:
                {"repo":"https://github.com/GoogleCloudPlatform/anthos-config-management-samples","branch":"init","rev":"HEAD"}
              configsync.gke.io/manager: :root
              configsync.gke.io/resource-id: configsync.gke.io_reposync_gamestore_repo-sync
API Version:  configsync.gke.io/v1beta1
Kind:         RepoSync
Metadata:
  Creation Timestamp:  2021-06-15T17:51:27Z
  Generation:          1
  Managed Fields:
    API Version:  configsync.gke.io/v1alpha1
    Fields Type:  FieldsV1
    fieldsV1:
      f:metadata:
        f:annotations:
          f:config.k8s.io/owning-inventory:
          f:configmanagement.gke.io/cluster-name:
          f:configmanagement.gke.io/managed:
          f:configmanagement.gke.io/source-path:
          f:configmanagement.gke.io/token:
          f:configsync.gke.io/declared-fields:
          f:configsync.gke.io/git-context:
          f:configsync.gke.io/manager:
          f:configsync.gke.io/resource-id:
        f:labels:
          f:app.kubernetes.io/managed-by:
          f:configsync.gke.io/declared-version:
      f:spec:
        f:git:
          f:auth:
          f:branch:
          f:dir:
          f:repo:
        f:sourceFormat:
    Manager:      configsync.gke.io
    Operation:    Apply
    Time:         2021-06-15T17:51:27Z
    API Version:  configsync.gke.io/v1alpha1
    Fields Type:  FieldsV1
    fieldsV1:
      f:status:
        f:source:
          f:commit:
          f:gitStatus:
            f:branch:
            f:dir:
            f:repo:
            f:revision:
        f:sync:
          f:commit:
          f:lastUpdate:
    Manager:      reconciler
    Operation:    Update
    Time:         2021-06-15T17:51:53Z
    API Version:  configsync.gke.io/v1alpha1
    Fields Type:  FieldsV1
    fieldsV1:
      f:spec:
        f:git:
          f:period:
          f:secretRef:
      f:status:
        .:
        f:conditions:
        f:observedGeneration:
        f:reconciler:
        f:source:
          .:
          f:gitStatus:
        f:sync:
    Manager:         reconciler-manager
    Operation:       Update
    Time:            2021-06-15T17:51:53Z
  Resource Version:  5216
  Self Link:         /apis/configsync.gke.io/v1beta1/namespaces/gamestore/reposyncs/repo-sync
  UID:               80d0a0d3-4ec6-4ccd-9a9d-4e2ddf0b7bbd
Spec:
  Git:
    Auth:         none
    Branch:       init
    Dir:          quickstart/multirepo/namespaces/gamestore
    Repo:         https://github.com/GoogleCloudPlatform/anthos-config-management-samples
  Source Format:  unstructured
Status:
  Conditions:
    Last Transition Time:  2021-06-15T17:51:56Z
    Last Update Time:      2021-06-15T17:51:56Z
    Status:                False
    Type:                  Reconciling
  Observed Generation:     1
  Reconciler:              ns-reconciler-gamestore
  Source:
    Commit:  a9b7593b2df5f64b1ae5e5eb2d9cafa619029589
    Git Status:
      Branch:    init
      Dir:       quickstart/multirepo/namespaces/gamestore
      Repo:      https://github.com/GoogleCloudPlatform/anthos-config-management-samples
      Revision:  HEAD
  Sync:
    Commit:       a9b7593b2df5f64b1ae5e5eb2d9cafa619029589
    Last Update:  2021-06-15T17:51:53Z
Events:           <none>