mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-07-23 11:50:44 +00:00
Update client-go docs for modules
- remove dep (c0a827dad6acc5fdea09967411aeeb9a8731d58f) - move godep to bottom (3308b07da50c9547bcbfa50297b9bb91a02e88a2) - bump example versions (9704cd1347ee287d388aa8f2b0091d4fe09640bb) - add go modules section (e37037f5ae7c862a4255465ef328b8a3b6db038a) - update go get docs (cda29fd9329a29856e5e3b218250b57ce8cbcd8f)
This commit is contained in:
parent
7cdd26e127
commit
c8a8fb4177
@ -3,35 +3,48 @@
|
|||||||
## For the casual user
|
## For the casual user
|
||||||
|
|
||||||
If you want to write a simple script, don't care about a reproducible client
|
If you want to write a simple script, don't care about a reproducible client
|
||||||
library install, don't mind getting head (which may be less stable than a
|
library install, don't mind getting HEAD (which may be less stable than a
|
||||||
particular release), then simply:
|
particular release), then simply:
|
||||||
|
|
||||||
```sh
|
```sh
|
||||||
$ go get k8s.io/client-go/...
|
$ go get k8s.io/client-go@master
|
||||||
```
|
```
|
||||||
|
|
||||||
This will install `k8s.io/client-go` in your `$GOPATH`. `k8s.io/client-go`
|
This will record a dependency on `k8s.io/client-go` in your go module.
|
||||||
includes most of its own dependencies in its `k8s.io/client-go/vendor` path,
|
You can now import and use the `k8s.io/client-go` APIs in your project.
|
||||||
except for `k8s.io/apimachinery` and `glog`. `go get` will recursively download
|
The next time you `go build`, `go test`, or `go run` your project,
|
||||||
these excluded repos to your `$GOPATH`, if they don't already exist. If
|
`k8s.io/client-go` and its dependencies will be downloaded (if needed),
|
||||||
`k8s.io/apimachinery` preexisted in `$GOPATH`, you also need to:
|
and detailed dependency version info will be added to your `go.mod` file
|
||||||
|
(or you can also run `go mod tidy` to do this directly).
|
||||||
|
|
||||||
|
This assumes you are using go modules with go 1.11+.
|
||||||
|
If you get a message like `cannot use path@version syntax in GOPATH mode`,
|
||||||
|
you can choose to [opt into using go modules](#go-modules).
|
||||||
|
If you are using a version of go prior to 1.11, or do not wish to use
|
||||||
|
go modules, you can download `k8s.io/client-go` to your `$GOPATH` instead:
|
||||||
|
|
||||||
```sh
|
```sh
|
||||||
|
$ go get -u k8s.io/client-go/...
|
||||||
$ go get -u k8s.io/apimachinery/...
|
$ go get -u k8s.io/apimachinery/...
|
||||||
|
$ cd $GOPATH/src/k8s.io/client-go
|
||||||
|
$ git checkout v11.0.0
|
||||||
|
$ cd $GOPATH/src/k8s.io/apimachinery
|
||||||
|
$ git checkout kubernetes-1.14.0
|
||||||
```
|
```
|
||||||
|
|
||||||
because the head of client-go is only guaranteed to work with the head of
|
This downloads a version of `k8s.io/client-go` prior to v1.12.0,
|
||||||
apimachinery.
|
which includes most of its dependencies in its `k8s.io/client-go/vendor` path
|
||||||
|
(except for `k8s.io/apimachinery` and `glog`).
|
||||||
|
|
||||||
We excluded `k8s.io/apimachinery` and `glog` from `k8s.io/client-go/vendor` to
|
We excluded `k8s.io/apimachinery` and `glog` from `k8s.io/client-go/vendor` to
|
||||||
prevent `go get` users from hitting issues like
|
prevent `go get` users from hitting issues like
|
||||||
[#19](https://github.com/kubernetes/client-go/issues/19) and
|
[#19](https://github.com/kubernetes/client-go/issues/19) and
|
||||||
[#83](https://github.com/kubernetes/client-go/issues/83). If your project share
|
[#83](https://github.com/kubernetes/client-go/issues/83). If your project shares
|
||||||
other dependencies with client-go, and you hit issues similar to #19 or #83,
|
other dependencies with client-go, and you hit issues similar to #19 or #83,
|
||||||
then you'll need to look down at the next section.
|
then you'll need to look down at the next section.
|
||||||
|
|
||||||
Note: the official go policy is that libraries should not vendor their
|
Note: the official go policy is that libraries should not vendor their
|
||||||
dependencies. This is unworkable for us, since our dependencies change and HEAD
|
dependencies. This was unworkable for us, since our dependencies change and HEAD
|
||||||
on every dependency has not necessarily been tested with client-go. In fact,
|
on every dependency has not necessarily been tested with client-go. In fact,
|
||||||
HEAD from all dependencies may not even compile with client-go!
|
HEAD from all dependencies may not even compile with client-go!
|
||||||
|
|
||||||
@ -49,39 +62,46 @@ Reasons why you might need to use a dependency management system:
|
|||||||
There are three tools you could in theory use for this. Instructions
|
There are three tools you could in theory use for this. Instructions
|
||||||
for each follows.
|
for each follows.
|
||||||
|
|
||||||
### Godep
|
### Go modules
|
||||||
|
|
||||||
[godep](https://github.com/tools/godep) is an older dependency management tool, which is
|
Dependency management tools are built into go 1.11+ in the form of [go modules](https://github.com/golang/go/wiki/Modules).
|
||||||
used by the main Kubernetes repo and `client-go` to manage dependencies.
|
These are used by the main Kubernetes repo (>= 1.15) and `client-go` (>= v12.0) to manage dependencies.
|
||||||
|
When using `client-go` v12.0.0+ and go 1.11.4+, go modules are the recommended dependency management tool.
|
||||||
|
|
||||||
Before proceeding with the below instructions, you should ensure that your
|
If you are using go 1.11 or 1.12 and are working with a project located within `$GOPATH`,
|
||||||
$GOPATH is empty except for containing your own package and its dependencies,
|
you must opt into using go modules:
|
||||||
and you have a copy of godep somewhere in your $PATH.
|
|
||||||
|
|
||||||
To install `client-go` and place its dependencies in your `$GOPATH`:
|
|
||||||
|
|
||||||
```sh
|
```sh
|
||||||
go get k8s.io/client-go/...
|
export GO111MODULE=on
|
||||||
cd $GOPATH/src/k8s.io/client-go
|
|
||||||
git checkout v9.0.0 # replace v9.0.0 with the required version
|
|
||||||
# cd 1.5 # only necessary with 1.5 and 1.4 clients.
|
|
||||||
godep restore ./...
|
|
||||||
```
|
```
|
||||||
|
|
||||||
At this point, `client-go`'s dependencies have been placed in your $GOPATH, but
|
Ensure your project has a `go.mod` file defined at the root of your project.
|
||||||
if you were to build, `client-go` would still see its own copy of its
|
If you do not already have one, `go mod init` will create one for you:
|
||||||
dependencies in its `vendor` directory. You have two options at this point.
|
|
||||||
|
|
||||||
If you would like to keep dependencies in your own project's vendor directory,
|
|
||||||
then you can continue like this:
|
|
||||||
|
|
||||||
```sh
|
```sh
|
||||||
cd $GOPATH/src/<my-pkg>
|
go mod init
|
||||||
godep save ./...
|
|
||||||
```
|
```
|
||||||
|
|
||||||
Alternatively, if you want to build using the dependencies in your `$GOPATH`,
|
Indicate which version of `client-go` your project requires.
|
||||||
then `rm -rf vendor/` to remove `client-go`'s copy of its dependencies.
|
For `client-go` 12.0.0+, this is a single step:
|
||||||
|
|
||||||
|
```sh
|
||||||
|
go get k8s.io/client-go@v12.0.0 # replace v12.0.0 with the required version
|
||||||
|
```
|
||||||
|
|
||||||
|
For `client-go` prior to v12.0.0, you also need to indicate the required versions of `k8s.io/api` and `k8s.io/apimachinery`:
|
||||||
|
|
||||||
|
```sh
|
||||||
|
go get k8s.io/client-go@v11.0.0 # replace v11.0.0 with the required version (or use kubernetes-1.x.y tags if desired)
|
||||||
|
go get k8s.io/api@kubernetes-1.14.0 # replace kubernetes-1.14.0 with the required version
|
||||||
|
go get k8s.io/apimachinery@kubernetes-1.14.0 # replace kubernetes-1.14.0 with the required version
|
||||||
|
```
|
||||||
|
|
||||||
|
You can now import and use the `k8s.io/client-go` APIs in your project.
|
||||||
|
The next time you `go build`, `go test`, or `go run` your project,
|
||||||
|
`k8s.io/client-go` and its dependencies will be downloaded (if needed),
|
||||||
|
and detailed dependency version info will be added to your `go.mod` file
|
||||||
|
(or you can also run `go mod tidy` to do this directly).
|
||||||
|
|
||||||
### Glide
|
### Glide
|
||||||
|
|
||||||
@ -99,7 +119,7 @@ your project:
|
|||||||
package: ( your project's import path ) # e.g. github.com/foo/bar
|
package: ( your project's import path ) # e.g. github.com/foo/bar
|
||||||
import:
|
import:
|
||||||
- package: k8s.io/client-go
|
- package: k8s.io/client-go
|
||||||
version: v9.0.0 # replace v9.0.0 with the required version
|
version: v11.0.0 # replace v11.0.0 with the required version
|
||||||
```
|
```
|
||||||
|
|
||||||
Second, add a Go file that imports `client-go` somewhere in your project,
|
Second, add a Go file that imports `client-go` somewhere in your project,
|
||||||
@ -132,7 +152,7 @@ requests can override the version manually in `glide.yaml`. For example:
|
|||||||
package: ( your project's import path ) # e.g. github.com/foo/bar
|
package: ( your project's import path ) # e.g. github.com/foo/bar
|
||||||
import:
|
import:
|
||||||
- package: k8s.io/client-go
|
- package: k8s.io/client-go
|
||||||
version: v9.0.0 # replace v9.0.0 with the required version
|
version: v11.0.0 # replace v11.0.0 with the required version
|
||||||
# Use a newer version of go-spew even though client-go wants an old one.
|
# Use a newer version of go-spew even though client-go wants an old one.
|
||||||
- package: github.com/davecgh/go-spew
|
- package: github.com/davecgh/go-spew
|
||||||
version: v1.1.0
|
version: v1.1.0
|
||||||
@ -143,62 +163,36 @@ After modifying, run `glide up -v` again to re-populate your /vendor directory.
|
|||||||
Optionally, Glide users can also use [`glide-vc`](https://github.com/sgotti/glide-vc)
|
Optionally, Glide users can also use [`glide-vc`](https://github.com/sgotti/glide-vc)
|
||||||
after running `glide up -v` to remove unused files from /vendor.
|
after running `glide up -v` to remove unused files from /vendor.
|
||||||
|
|
||||||
### Go modules
|
### Godep
|
||||||
|
|
||||||
Dependency management tools are built into go 1.11+ in the form of [go modules](https://github.com/golang/go/wiki/Modules).
|
[godep](https://github.com/tools/godep) is an older dependency management tool, which was
|
||||||
|
used by the main Kubernetes repo (<= 1.14) and `client-go` (<= v11.0) to manage dependencies.
|
||||||
|
|
||||||
If you are using go 1.11 or 1.12 and are working with a project located within `$GOPATH`,
|
Before proceeding with the below instructions, you should ensure that your
|
||||||
you must opt into using go modules:
|
$GOPATH is empty except for containing your own package and its dependencies,
|
||||||
|
and you have a copy of godep somewhere in your $PATH.
|
||||||
|
|
||||||
|
To install `client-go` and place its dependencies in your `$GOPATH`:
|
||||||
|
|
||||||
```sh
|
```sh
|
||||||
export GO111MODULE=on
|
go get k8s.io/client-go/...
|
||||||
|
cd $GOPATH/src/k8s.io/client-go
|
||||||
|
git checkout v11.0.0 # v11.0.0 or older
|
||||||
|
# cd 1.5 # only necessary with 1.5 and 1.4 clients.
|
||||||
|
godep restore ./...
|
||||||
```
|
```
|
||||||
|
|
||||||
Ensure your project has a `go.mod` file defined at the root of your project.
|
At this point, `client-go`'s dependencies have been placed in your $GOPATH, but
|
||||||
If you do not already have one, `go mod init` will create one for you:
|
if you were to build, `client-go` would still see its own copy of its
|
||||||
|
dependencies in its `vendor` directory. You have two options at this point.
|
||||||
|
|
||||||
|
If you would like to keep dependencies in your own project's vendor directory,
|
||||||
|
then you can continue like this:
|
||||||
|
|
||||||
```sh
|
```sh
|
||||||
go mod init
|
cd $GOPATH/src/<my-pkg>
|
||||||
|
godep save ./...
|
||||||
```
|
```
|
||||||
|
|
||||||
Indicate the matching versions of `k8s.io/client-go`, `k8s.io/api`, and `k8s.io/apimachinery` your project requires:
|
Alternatively, if you want to build using the dependencies in your `$GOPATH`,
|
||||||
|
then `rm -rf vendor/` to remove `client-go`'s copy of its dependencies.
|
||||||
```sh
|
|
||||||
go get k8s.io/client-go@v10.0.0 # replace v10.0.0 with the required version (or use kubernetes-1.x.y tags if desired)
|
|
||||||
go get k8s.io/api@kubernetes-1.13.4 # replace kubernetes-1.13.4 with the required version
|
|
||||||
go get k8s.io/apimachinery@kubernetes-1.13.4 # replace kubernetes-1.13.4 with the required version
|
|
||||||
```
|
|
||||||
|
|
||||||
or you can edit your `go.mod` file directly to specify required versions:
|
|
||||||
|
|
||||||
```
|
|
||||||
require (
|
|
||||||
k8s.io/api kubernetes-1.13.4
|
|
||||||
k8s.io/apimachinery kubernetes-1.13.4
|
|
||||||
k8s.io/client-go v10.0.0
|
|
||||||
)
|
|
||||||
```
|
|
||||||
|
|
||||||
You can now import and use the `k8s.io/client-go` APIs in your project.
|
|
||||||
The next time you `go build`, `go test`, or `go run` your project,
|
|
||||||
`k8s.io/client-go` and its dependencies will be downloaded (if needed),
|
|
||||||
and detailed dependency version info will be added to your `go.mod` file.
|
|
||||||
You can also run `go mod tidy` to do this directly.
|
|
||||||
|
|
||||||
### Dep (Not supported yet!)
|
|
||||||
|
|
||||||
[dep](https://github.com/golang/dep) is an up-and-coming dependency management
|
|
||||||
tool, which has the goal of being accepted as part of the standard go toolchain.
|
|
||||||
However, client-go does **NOT** work well with `dep` yet. To support `dep`, we
|
|
||||||
need to fix at least two issues:
|
|
||||||
1. publish native `Gopkg.toml` in client-go and other k8s.io repos, like `k8s.io/apimachinery`;
|
|
||||||
2. find a way to express transitive constraints (see https://github.com/golang/dep/issues/1124).
|
|
||||||
|
|
||||||
As a workaround, which may or may not be worthwhile, you can specify all
|
|
||||||
client-go dependencies manually as
|
|
||||||
[override](https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md#override)
|
|
||||||
in Gopkg.toml with the versions listed in [Godeps.json](./Godeps/Godeps.json),
|
|
||||||
and manually update them when you upgrade client-go version.
|
|
||||||
|
|
||||||
We are actively working on the two issues blocking using `dep`. For the
|
|
||||||
meantime, we recommend using `glide` or `godeps`.
|
|
||||||
|
Loading…
Reference in New Issue
Block a user