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Update the BUILDING.md to a world with modules
The current doc says to use go get to pull the source code, which no longer works by default on recent versions of go. Also, the makefile has changed to not run all the validation automatically, and to use buildx for some commands. Signed-off-by: James Hewitt <james.hewitt@uk.ibm.com>
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James Hewitt
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BUILDING.md
91
BUILDING.md
@ -19,19 +19,29 @@ You are expected to know your way around with go & git.
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If you are a casual user with no development experience, and no preliminary knowledge of go, building from source is probably not a good solution for you.
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## Build the development environment
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## Configure the development environment
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The first prerequisite of properly building distribution targets is to have a Go
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development environment setup. Please follow [How to Write Go Code](https://golang.org/doc/code.html)
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for proper setup. If done correctly, you should have a GOROOT and GOPATH set in the
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environment.
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If a Go development environment is setup, one can use `go get` to install the
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`registry` command from the current latest:
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Next, fetch the code from the repository using git:
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go get github.com/distribution/distribution/cmd/registry
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git clone git@github.com:distribution/distribution.git
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cd distribution
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The above will install the source repository into the `GOPATH`.
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If you are planning to create a pull request with changes, you may want to clone directly from your [fork](https://help.github.com/en/articles/about-forks).
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## Build and run from source
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First, build the binaries:
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$ make
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+ bin/registry
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+ bin/digest
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+ bin/registry-api-descriptor-template
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+ binaries
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Now create the directory for the registry data (this might require you to set permissions properly)
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@ -42,75 +52,48 @@ Now create the directory for the registry data (this might require you to set pe
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The `registry`
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binary can then be run with the following:
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$ $GOPATH/bin/registry --version
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$GOPATH/bin/registry github.com/distribution/distribution v2.0.0-alpha.1+unknown
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$ ./bin/registry --version
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./bin/registry github.com/distribution/distribution/v3 v2.7.0-1993-g8857a194
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> __NOTE:__ While you do not need to use `go get` to checkout the distribution
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> project, for these build instructions to work, the project must be checked
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> out in the correct location in the `GOPATH`. This should almost always be
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> `$GOPATH/src/github.com/distribution/distribution`.
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The registry can be run with the default config using the following
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The registry can be run with a development config using the following
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incantation:
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$ $GOPATH/bin/registry serve $GOPATH/src/github.com/distribution/distribution/cmd/registry/config-example.yml
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INFO[0000] endpoint local-5003 disabled, skipping app.id=34bbec38-a91a-494a-9a3f-b72f9010081f version=v2.0.0-alpha.1+unknown
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INFO[0000] endpoint local-8083 disabled, skipping app.id=34bbec38-a91a-494a-9a3f-b72f9010081f version=v2.0.0-alpha.1+unknown
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INFO[0000] listening on :5000 app.id=34bbec38-a91a-494a-9a3f-b72f9010081f version=v2.0.0-alpha.1+unknown
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INFO[0000] debug server listening localhost:5001
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$ ./bin/registry serve cmd/registry/config-dev.yml
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INFO[0000] debug server listening :5001
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WARN[0000] No HTTP secret provided - generated random secret. This may cause problems with uploads if multiple registries are behind a load-balancer. To provide a shared secret, fill in http.secret in the configuration file or set the REGISTRY_HTTP_SECRET environment variable. environment=development go.version=go1.18.3 instance.id=e837df62-a66c-4e04-a014-b063546e82e0 service=registry version=v2.7.0-1993-g8857a194
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INFO[0000] endpoint local-5003 disabled, skipping environment=development go.version=go1.18.3 instance.id=e837df62-a66c-4e04-a014-b063546e82e0 service=registry version=v2.7.0-1993-g8857a194
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INFO[0000] endpoint local-8083 disabled, skipping environment=development go.version=go1.18.3 instance.id=e837df62-a66c-4e04-a014-b063546e82e0 service=registry version=v2.7.0-1993-g8857a194
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INFO[0000] using inmemory blob descriptor cache environment=development go.version=go1.18.3 instance.id=e837df62-a66c-4e04-a014-b063546e82e0 service=registry version=v2.7.0-1993-g8857a194
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INFO[0000] providing prometheus metrics on /metrics
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INFO[0000] listening on [::]:5000 environment=development go.version=go1.18.3 instance.id=e837df62-a66c-4e04-a014-b063546e82e0 service=registry version=v2.7.0-1993-g8857a194
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If it is working, one should see the above log messages.
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### Repeatable Builds
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### Build reference
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For the full development experience, one should `cd` into
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`$GOPATH/src/github.com/distribution/distribution`. From there, the regular `go`
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commands, such as `go test`, should work per package (please see
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[Developing](#developing) if they don't work).
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The regular `go` commands, such as `go test`, should work per package.
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A `Makefile` has been provided as a convenience to support repeatable builds.
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Please install the following into `GOPATH` for it to work:
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go get github.com/golang/lint/golint
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Once these commands are available in the `GOPATH`, run `make` to get a full
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build:
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Run `make` to build the binaries:
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$ make
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+ clean
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+ fmt
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+ vet
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+ lint
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+ build
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github.com/docker/docker/vendor/src/code.google.com/p/go/src/pkg/archive/tar
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github.com/sirupsen/logrus
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github.com/docker/libtrust
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...
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github.com/yvasiyarov/gorelic
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github.com/distribution/distribution/registry/handlers
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github.com/distribution/distribution/cmd/registry
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+ test
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...
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ok github.com/distribution/distribution/digest 7.875s
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ok github.com/distribution/distribution/manifest 0.028s
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ok github.com/distribution/distribution/notifications 17.322s
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? github.com/distribution/distribution/registry [no test files]
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ok github.com/distribution/distribution/registry/api/v2 0.101s
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? github.com/distribution/distribution/registry/auth [no test files]
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ok github.com/distribution/distribution/registry/auth/silly 0.011s
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...
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+ /Users/sday/go/src/github.com/distribution/distribution/bin/registry
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+ /Users/sday/go/src/github.com/distribution/distribution/bin/registry-api-descriptor-template
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+ bin/registry
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+ bin/digest
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+ bin/registry-api-descriptor-template
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+ binaries
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The above provides a repeatable build using the contents of the vendor
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directory. This includes formatting, vetting, linting, building,
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testing and generating tagged binaries. We can verify this worked by running
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directory. We can verify this worked by running
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the registry binary generated in the "./bin" directory:
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$ ./bin/registry --version
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./bin/registry github.com/distribution/distribution v2.0.0-alpha.2-80-g16d8b2c.m
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Run `make test` to run all of the tests.
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Run `make validate` to run the validators, including the linter and vendor validation. You must have docker with the buildx plugin installed to run the validators.
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### Optional build tags
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Optional [build tags](http://golang.org/pkg/go/build/) can be provided using
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