Make docs links go through docs.k8s.io

This commit is contained in:
Tim Hockin
2015-04-23 16:36:27 -07:00
parent e8b28c59c6
commit 12e4e8f304
27 changed files with 127 additions and 127 deletions

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@@ -83,7 +83,7 @@ We want to be able to assign IP addresses externally from Docker ([Docker issue
In addition to enabling self-registration with 3rd-party discovery mechanisms, we'd like to setup DDNS automatically ([Issue #146](https://github.com/GoogleCloudPlatform/kubernetes/issues/146)). hostname, $HOSTNAME, etc. should return a name for the pod ([Issue #298](https://github.com/GoogleCloudPlatform/kubernetes/issues/298)), and gethostbyname should be able to resolve names of other pods. Probably we need to set up a DNS resolver to do the latter ([Docker issue #2267](https://github.com/dotcloud/docker/issues/2267)), so that we don't need to keep /etc/hosts files up to date dynamically.
[Service](https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/services.md) endpoints are currently found through environment variables. Both [Docker-links-compatible](https://docs.docker.com/userguide/dockerlinks/) variables and kubernetes-specific variables ({NAME}_SERVICE_HOST and {NAME}_SERVICE_BAR) are supported, and resolve to ports opened by the service proxy. We don't actually use [the Docker ambassador pattern](https://docs.docker.com/articles/ambassador_pattern_linking/) to link containers because we don't require applications to identify all clients at configuration time, yet. While services today are managed by the service proxy, this is an implementation detail that applications should not rely on. Clients should instead use the [service portal IP](https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/services.md) (which the above environment variables will resolve to). However, a flat service namespace doesn't scale and environment variables don't permit dynamic updates, which complicates service deployment by imposing implicit ordering constraints. We intend to register each service portal IP in DNS, and for that to become the preferred resolution protocol.
[Service](http://docs.k8s.io/services.md) endpoints are currently found through environment variables. Both [Docker-links-compatible](https://docs.docker.com/userguide/dockerlinks/) variables and kubernetes-specific variables ({NAME}_SERVICE_HOST and {NAME}_SERVICE_BAR) are supported, and resolve to ports opened by the service proxy. We don't actually use [the Docker ambassador pattern](https://docs.docker.com/articles/ambassador_pattern_linking/) to link containers because we don't require applications to identify all clients at configuration time, yet. While services today are managed by the service proxy, this is an implementation detail that applications should not rely on. Clients should instead use the [service portal IP](http://docs.k8s.io/services.md) (which the above environment variables will resolve to). However, a flat service namespace doesn't scale and environment variables don't permit dynamic updates, which complicates service deployment by imposing implicit ordering constraints. We intend to register each service portal IP in DNS, and for that to become the preferred resolution protocol.
We'd also like to accommodate other load-balancing solutions (e.g., HAProxy), non-load-balanced services ([Issue #260](https://github.com/GoogleCloudPlatform/kubernetes/issues/260)), and other types of groups (worker pools, etc.). Providing the ability to Watch a label selector applied to pod addresses would enable efficient monitoring of group membership, which could be directly consumed or synced with a discovery mechanism. Event hooks ([Issue #140](https://github.com/GoogleCloudPlatform/kubernetes/issues/140)) for join/leave events would probably make this even easier.

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@@ -72,7 +72,7 @@ service would also consume the secrets associated with the MySQL service.
### Use-Case: Secrets associated with service accounts
[Service Accounts](https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/design/service_accounts.md) are proposed as a
[Service Accounts](http://docs.k8s.io/design/service_accounts.md) are proposed as a
mechanism to decouple capabilities and security contexts from individual human users. A
`ServiceAccount` contains references to some number of secrets. A `Pod` can specify that it is
associated with a `ServiceAccount`. Secrets should have a `Type` field to allow the Kubelet and
@@ -236,7 +236,7 @@ memory overcommit on the node.
#### Secret data on the node: isolation
Every pod will have a [security context](https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/design/security_context.md).
Every pod will have a [security context](http://docs.k8s.io/design/security_context.md).
Secret data on the node should be isolated according to the security context of the container. The
Kubelet volume plugin API will be changed so that a volume plugin receives the security context of
a volume along with the volume spec. This will allow volume plugins to implement setting the
@@ -248,7 +248,7 @@ Several proposals / upstream patches are notable as background for this proposal
1. [Docker vault proposal](https://github.com/docker/docker/issues/10310)
2. [Specification for image/container standardization based on volumes](https://github.com/docker/docker/issues/9277)
3. [Kubernetes service account proposal](https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/design/service_accounts.md)
3. [Kubernetes service account proposal](http://docs.k8s.io/design/service_accounts.md)
4. [Secrets proposal for docker (1)](https://github.com/docker/docker/pull/6075)
5. [Secrets proposal for docker (2)](https://github.com/docker/docker/pull/6697)

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@@ -63,14 +63,14 @@ Automated process users fall into the following categories:
A pod runs in a *security context* under a *service account* that is defined by an administrator or project administrator, and the *secrets* a pod has access to is limited by that *service account*.
1. The API should authenticate and authorize user actions [authn and authz](https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/design/access.md)
1. The API should authenticate and authorize user actions [authn and authz](http://docs.k8s.io/design/access.md)
2. All infrastructure components (kubelets, kube-proxies, controllers, scheduler) should have an infrastructure user that they can authenticate with and be authorized to perform only the functions they require against the API.
3. Most infrastructure components should use the API as a way of exchanging data and changing the system, and only the API should have access to the underlying data store (etcd)
4. When containers run on the cluster and need to talk to other containers or the API server, they should be identified and authorized clearly as an autonomous process via a [service account](https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/design/service_accounts.md)
4. When containers run on the cluster and need to talk to other containers or the API server, they should be identified and authorized clearly as an autonomous process via a [service account](http://docs.k8s.io/design/service_accounts.md)
1. If the user who started a long-lived process is removed from access to the cluster, the process should be able to continue without interruption
2. If the user who started processes are removed from the cluster, administrators may wish to terminate their processes in bulk
3. When containers run with a service account, the user that created / triggered the service account behavior must be associated with the container's action
5. When container processes run on the cluster, they should run in a [security context](https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/design/security_context.md) that isolates those processes via Linux user security, user namespaces, and permissions.
5. When container processes run on the cluster, they should run in a [security context](http://docs.k8s.io/design/security_context.md) that isolates those processes via Linux user security, user namespaces, and permissions.
1. Administrators should be able to configure the cluster to automatically confine all container processes as a non-root, randomly assigned UID
2. Administrators should be able to ensure that container processes within the same namespace are all assigned the same unix user UID
3. Administrators should be able to limit which developers and project administrators have access to higher privilege actions
@@ -79,7 +79,7 @@ A pod runs in a *security context* under a *service account* that is defined by
6. Developers may need to ensure their images work within higher security requirements specified by administrators
7. When available, Linux kernel user namespaces can be used to ensure 5.2 and 5.4 are met.
8. When application developers want to share filesytem data via distributed filesystems, the Unix user ids on those filesystems must be consistent across different container processes
6. Developers should be able to define [secrets](https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/design/secrets.md) that are automatically added to the containers when pods are run
6. Developers should be able to define [secrets](http://docs.k8s.io/design/secrets.md) that are automatically added to the containers when pods are run
1. Secrets are files injected into the container whose values should not be displayed within a pod. Examples:
1. An SSH private key for git cloning remote data
2. A client certificate for accessing a remote system
@@ -93,11 +93,11 @@ A pod runs in a *security context* under a *service account* that is defined by
### Related design discussion
* Authorization and authentication https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/design/access.md
* Authorization and authentication http://docs.k8s.io/design/access.md
* Secret distribution via files https://github.com/GoogleCloudPlatform/kubernetes/pull/2030
* Docker secrets https://github.com/docker/docker/pull/6697
* Docker vault https://github.com/docker/docker/issues/10310
* Service Accounts: https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/design/service_accounts.md
* Service Accounts: http://docs.k8s.io/design/service_accounts.md
* Secret volumes https://github.com/GoogleCloudPlatform/kubernetes/4126
## Specific Design Points