158 lines
5.4 KiB
Markdown
158 lines
5.4 KiB
Markdown
<!--[metadata]>
|
|
+++
|
|
draft = "true"
|
|
+++
|
|
<![end-metadata]-->
|
|
|
|
# Build the development environment
|
|
|
|
The first prequisite of properly building distribution targets is to have a Go
|
|
development environment setup. Please follow [How to Write Go Code](https://golang.org/doc/code.html)
|
|
for proper setup. If done correctly, you should have a GOROOT and GOPATH set in the
|
|
environment.
|
|
|
|
If a Go development environment is setup, one can use `go get` to install the
|
|
`registry` command from the current latest:
|
|
|
|
```sh
|
|
go get github.com/docker/distribution/cmd/registry
|
|
```
|
|
|
|
The above will install the source repository into the `GOPATH`.
|
|
|
|
Now create the directory for the registry data (this might require you to set permissions properly)
|
|
|
|
```sh
|
|
mkdir -p /var/lib/registry
|
|
```
|
|
|
|
... or alternatively `export REGISTRY_STORAGE_FILESYSTEM_ROOTDIRECTORY=/somewhere` if you want to store data into another location.
|
|
|
|
The `registry`
|
|
binary can then be run with the following:
|
|
|
|
```
|
|
$ $GOPATH/bin/registry -version
|
|
$GOPATH/bin/registry github.com/docker/distribution v2.0.0-alpha.1+unknown
|
|
```
|
|
|
|
> __NOTE:__ While you do not need to use `go get` to checkout the distribution
|
|
> project, for these build instructions to work, the project must be checked
|
|
> out in the correct location in the `GOPATH`. This should almost always be
|
|
> `$GOPATH/src/github.com/docker/distribution`.
|
|
|
|
The registry can be run with the default config using the following
|
|
incantantation:
|
|
|
|
```
|
|
$ $GOPATH/bin/registry $GOPATH/src/github.com/docker/distribution/cmd/registry/config-dev.yml
|
|
INFO[0000] endpoint local-5003 disabled, skipping app.id=34bbec38-a91a-494a-9a3f-b72f9010081f version=v2.0.0-alpha.1+unknown
|
|
INFO[0000] endpoint local-8083 disabled, skipping app.id=34bbec38-a91a-494a-9a3f-b72f9010081f version=v2.0.0-alpha.1+unknown
|
|
INFO[0000] listening on :5000 app.id=34bbec38-a91a-494a-9a3f-b72f9010081f version=v2.0.0-alpha.1+unknown
|
|
INFO[0000] debug server listening localhost:5001
|
|
```
|
|
|
|
If it is working, one should see the above log messages.
|
|
|
|
### Repeatable Builds
|
|
|
|
For the full development experience, one should `cd` into
|
|
`$GOPATH/src/github.com/docker/distribution`. From there, the regular `go`
|
|
commands, such as `go test`, should work per package (please see
|
|
[Developing](#developing) if they don't work).
|
|
|
|
A `Makefile` has been provided as a convenience to support repeatable builds.
|
|
Please install the following into `GOPATH` for it to work:
|
|
|
|
```
|
|
go get github.com/tools/godep github.com/golang/lint/golint
|
|
```
|
|
|
|
**TODO(stevvooe):** Add a `make setup` command to Makefile to run this. Have to think about how to interact with Godeps properly.
|
|
|
|
Once these commands are available in the `GOPATH`, run `make` to get a full
|
|
build:
|
|
|
|
```
|
|
$ GOPATH=`godep path`:$GOPATH make
|
|
+ clean
|
|
+ fmt
|
|
+ vet
|
|
+ lint
|
|
+ build
|
|
github.com/docker/docker/vendor/src/code.google.com/p/go/src/pkg/archive/tar
|
|
github.com/Sirupsen/logrus
|
|
github.com/docker/libtrust
|
|
...
|
|
github.com/yvasiyarov/gorelic
|
|
github.com/docker/distribution/registry/handlers
|
|
github.com/docker/distribution/cmd/registry
|
|
+ test
|
|
...
|
|
ok github.com/docker/distribution/digest 7.875s
|
|
ok github.com/docker/distribution/manifest 0.028s
|
|
ok github.com/docker/distribution/notifications 17.322s
|
|
? github.com/docker/distribution/registry [no test files]
|
|
ok github.com/docker/distribution/registry/api/v2 0.101s
|
|
? github.com/docker/distribution/registry/auth [no test files]
|
|
ok github.com/docker/distribution/registry/auth/silly 0.011s
|
|
...
|
|
+ /Users/sday/go/src/github.com/docker/distribution/bin/registry
|
|
+ /Users/sday/go/src/github.com/docker/distribution/bin/registry-api-descriptor-template
|
|
+ /Users/sday/go/src/github.com/docker/distribution/bin/dist
|
|
+ binaries
|
|
```
|
|
|
|
The above provides a repeatable build using the contents of the vendored
|
|
Godeps directory. This includes formatting, vetting, linting, building,
|
|
testing and generating tagged binaries. We can verify this worked by running
|
|
the registry binary generated in the "./bin" directory:
|
|
|
|
```sh
|
|
$ ./bin/registry -version
|
|
./bin/registry github.com/docker/distribution v2.0.0-alpha.2-80-g16d8b2c.m
|
|
```
|
|
|
|
### Developing
|
|
|
|
The above approaches are helpful for small experimentation. If more complex
|
|
tasks are at hand, it is recommended to employ the full power of `godep`.
|
|
|
|
The Makefile is designed to have its `GOPATH` defined externally. This allows
|
|
one to experiment with various development environment setups. This is
|
|
primarily useful when testing upstream bugfixes, by modifying local code. This
|
|
can be demonstrated using `godep` to migrate the `GOPATH` to use the specified
|
|
dependencies. The `GOPATH` can be migrated to the current package versions
|
|
declared in `Godeps` with the following command:
|
|
|
|
```sh
|
|
godep restore
|
|
```
|
|
|
|
> **WARNING:** This command will checkout versions of the code specified in
|
|
> Godeps/Godeps.json, modifying the contents of `GOPATH`. If this is
|
|
> undesired, it is recommended to create a workspace devoted to work on the
|
|
> _Distribution_ project.
|
|
|
|
With a successful run of the above command, one can now use `make` without
|
|
specifying the `GOPATH`:
|
|
|
|
```sh
|
|
$ make
|
|
```
|
|
|
|
If that is successful, standard `go` commands, such as `go test` should work,
|
|
per package, without issue.
|
|
|
|
### Optional build tags
|
|
|
|
Optional [build tags](http://golang.org/pkg/go/build/) can be provided using
|
|
the environment variable `DOCKER_BUILDTAGS`.
|
|
|
|
To enable the [Ceph RADOS storage driver](storage-drivers/rados.md)
|
|
(librados-dev and librbd-dev will be required to build the bindings):
|
|
|
|
```sh
|
|
export DOCKER_BUILDTAGS='include_rados'
|
|
```
|