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new driver: kubernetes

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Tested with `kind` and GKE.

Note: "nodes" shown in `docker buildx ls` are unrelated to Kubernetes "nodes".
Probably buildx should come up with an alternative term.

Usage:

  $ kind create cluster
  $ export KUBECONFIG="$(kind get kubeconfig-path --name="kind")"

  $ docker buildx create --driver kubernetes --driver-opt replicas=3 --use
  $ docker buildx build -t foo --load .

`--load` loads the image into the local Docker.

Driver opts:

  - `image=IMAGE` - Sets the container image to be used for running buildkit.
  - `namespace=NS` - Sets the Kubernetes namespace. Defaults to the current namespace.
  - `replicas=N` - Sets the number of `Pod` replicas. Defaults to 1.
  - `rootless=(true|false)` - Run the container as a non-root user without `securityContext.privileged`. Defaults to false.
  - `loadbalance=(sticky|random)` - Load-balancing strategy. If set to "sticky", the pod is chosen using the hash of the context path. Defaults to "sticky"

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
This commit is contained in:
Akihiro Suda
2019-10-21 15:02:37 +09:00
parent f5c2673878
commit 6b65b0c982
657 changed files with 258673 additions and 370 deletions
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12
README.md
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@@ -11,7 +11,7 @@ _buildx is Tech Preview_
- Multi-node builds for cross-platform images
- Compose build support
- WIP: High-level build constructs (`bake`)
- TODO: In-container driver support
- In-container driver support (both Docker and Kubernetes)
# Table of Contents
@@ -394,12 +394,18 @@ Passes additional driver-specific options. Details for each driver:
- `docker` - No driver options
- `docker-container`
- `image` - Sets the container image to be used for running buildkit.
- `network` - Sets the network mode for running the buildkit container.
- `image=IMAGE` - Sets the container image to be used for running buildkit.
- `network=NETMODE` - Sets the network mode for running the buildkit container.
- Example:
```
--driver docker-container --driver-opt image=moby/buildkit:master,network=host
```
- `kubernetes`
- `image=IMAGE` - Sets the container image to be used for running buildkit.
- `namespace=NS` - Sets the Kubernetes namespace. Defaults to the current namespace.
- `replicas=N` - Sets the number of `Pod` replicas. Defaults to 1.
- `rootless=(true|false)` - Run the container as a non-root user without `securityContext.privileged`. [Using Ubuntu host kernel is recommended](https://github.com/moby/buildkit/blob/master/docs/rootless.md). Defaults to false.
- `loadbalance=(sticky|random)` - Load-balancing strategy. If set to "sticky", the pod is chosen using the hash of the context path. Defaults to "sticky"
#### `--leave`