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Support for mounting a shared volume instead of copying application
files was meant to provide an option for development use cases. This
functionality has never been thoroughly tested or utilized for any use
case. It should be removed for now.
Relates tangentially to task T204591 that simplifies node support.
Change-Id: Ib70cb7bceb504841897a38d732880ba376fe67c8
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The builder configuration has proven useful for supporting generic
pre-entrypoint commands such as dependency managers not otherwise
supported by specific Blubber configuration. Adding additional
`builder.requirements` config expands support for such commands by
allowing the user to specify files that should be copied into the image
before the builder command runs.
To support this extra configuration, `builder` had to be changed from a
simple string to a mapping. The builder command must now by given as
`builder.command`.
The pattern of creating parent directories, copying files, and executing
one or more commands prior to the entrypoint has become a common
one. Some of the implementation of this pattern was moved from
`PythonConfig` into shared build macros `build.SortFilesByDir` and
`build.SyncFiles`. All config types that must have requirements files
copied over independently of the entire source tree (`PythonConfig`,
`BuilderConfig`, `NodeConfig`) now delegate to these functions.
Change-Id: I67f33034f22cee2851ec866cfb07ab20c23eba8c
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All import paths and other references to the previously Blubber repo in
Phabricator have been changed to point to the new Gerrit project URL.
Note that building or testing against this change will require you to
move your working directory to `$GOPATH/src/gerrit.wikimedia.org/r/blubber`.
Contribution documentation was updated to reflect the changes, and the
`.arcvendor` submodule has been removed.
Bug: T200452
Change-Id: I3ab23e420b2825e86e2bd7c9b3da9d4de23edaa1
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Summary:
Ran into a Docker error when attempting to build a node project with
more than one requirements files:
When using COPY with more than one source file, the destination must
be a directory and end with a /
Reviewers: dduvall, #release-engineering-team
Reviewed By: dduvall, #release-engineering-team
Tags: #release-engineering-team
Differential Revision: https://phabricator.wikimedia.org/D1080
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Summary:
The implementation of D984 did not include enforcing ownership for
`build.CopyFrom` instruction and so artifacts copied from one image to
another via `copies:` were problematically owned as root.
In order to fix this behavior:
1. `config.ArtifactConfig` `build.CopyFrom` instructions are now
injected duration `build.PhaseInstall`
2. `config.VariantConfig` calls `build.ApplyUser` for these artifact
instructions as well using the `runs.as` user
3. `build.CopyAs` was refactored to wrap any `build.Instruction` which
should only really be used with `build.Copy` or `build.CopyFrom`.
Test Plan:
Run `go test ./...`. Run `blubber` against configuration with a variant that
uses `copies` and verify that the `COPY --from` instructions also include a
`--chown` flag.
Reviewers: thcipriani, mmodell, hashar, #release-engineering-team, demon
Reviewed By: thcipriani, #release-engineering-team
Tags: #release-engineering-team
Differential Revision: https://phabricator.wikimedia.org/D1002
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Summary:
Introduce new `build.EntryPoint` and `build.WorkingDirectory`
instructions to allow configuration to inject them instead of hard
coding their generation in the Docker compiler.
Simplified the Docker compiler to simply iterate over build phases as
returned by a new function `build.Phases()`.
Depends on D990
Test Plan: Run `go test ./...`.
Reviewers: thcipriani, demon, hashar, #release-engineering-team
Reviewed By: thcipriani, #release-engineering-team
Tags: #release-engineering-team
Differential Revision: https://phabricator.wikimedia.org/D991
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Summary:
Introduces new `lives` configuration that provides the name/UID/GID of
the user that will own application files and installed dependencies.
This new configuration is distinct from `runs` in that the former
determines application file location ownership and the latter now only
determines runtime process ownership. Default configuration has also
been introduced for both config sections.
In addition to the new configuration, a new `build.CopyAs` instruction
has been introduced that ensures correct UID/GID ownership of files
copied into the container image, and all unqualified `build.Copy`
instructions are wrapped by the new `build.CopyAs` instruction using the
UID/GID appropriate for the current build phase. A new `build.User`
instruction is also introduced and injected into the build at the start
of certain phases to enforce ownership of `build.Run` processes.
This effective process/file ownership model is:
PhasePrivileged - "root"
PhasePrivilegedDropped - lives.as
PhasePreInstall - lives.as
PhaseInstall - lives.as
PhasePostInstall - runs.as
Fixes T187372
Test Plan: Run `go test ./...`.
Reviewers: thcipriani, hashar, demon, #release-engineering-team
Reviewed By: thcipriani, #release-engineering-team
Subscribers: mmodell
Tags: #release-engineering-team
Maniphest Tasks: T187372
Differential Revision: https://phabricator.wikimedia.org/D984
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Summary:
Wrote inline documentation for all the things.
Fixes T168000
Test Plan: Execute `godoc -http=:6060` and proofread all the things.
Reviewers: thcipriani, hashar, #release-engineering-team, demon
Reviewed By: thcipriani, #release-engineering-team, demon
Tags: #release-engineering-team
Maniphest Tasks: T168000
Differential Revision: https://phabricator.wikimedia.org/D841
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Summary:
Certain meta data including the Blubber version and variant used at
invocation may be useful in downstream tracking.
Implemented abstract and Docker-specific instructions for labels and
modified the Docker compiler to include these instructions at the end of
the output for the final stage.
Depends on D816
Fixes T178022
Test Plan:
Run unit tests. Run `make && bin/blubber blubber.example.yaml production` and
verify that both `blubber.version` and `blubber.variant` labels are present
and accurate.
Reviewers: thcipriani, hashar, #release-engineering-team
Reviewed By: thcipriani, #release-engineering-team
Tags: #release-engineering-team
Maniphest Tasks: T178022
Differential Revision: https://phabricator.wikimedia.org/D818
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Summary:
Debian only provides a package for the GitHub version so it's either
this or we'd have to maintain a patch to change the import paths at
packaging, a moving target for sure.
Since it's only a development dependency, we're not too worried about
versioning it and this is a much more simple solution.
Refs T175609
Test Plan: Run `go get ./... && go test ./...`.
Reviewers: thcipriani, #release-engineering-team
Reviewed By: thcipriani, #release-engineering-team
Tags: #release-engineering-team
Maniphest Tasks: T175609
Differential Revision: https://phabricator.wikimedia.org/D782
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Summary:
Now that our Phabricator instance handles `go get` requests, we can use
a path without the `.git` suffix as the canonical import path.
Test Plan: Run `go test ./...` and `go build`.
Reviewers: thcipriani, #release-engineering-team
Reviewed By: thcipriani, #release-engineering-team
Tags: #release-engineering-team
Differential Revision: https://phabricator.wikimedia.org/D780
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Summary:
Defined new abstract `build.Volume` and corresponding
`docker.DockerVolume` instructions.
Refactored compilation of main `COPY` or `VOLUME` instruction for
application files to use the new instructions and moved injection of
these instructions out of the compiler and into `VariantConfig`. The
latter can be smarter about the following cases:
1. When `copies` is set, simply depend on artifacts for the application
files and do not copy anything from the build host.
2. When `sharedvolume` is `true`, inject a `build.Volume` instruction
for the application working directory.
3. When neither of the above are set, copy application files from the
host.
Fixes T174623
Depends on D768
Test Plan:
Run `go test ./...`. Run `blubber blubber.example.yaml production` and ensure:
1. The `prep` stage has a `COPY . .` instruction.
2. The final stage has no `COPY . .` instruction, only `COPY --from=prep`
instructions.
Reviewers: thcipriani, mobrovac, hashar, mmodell, #release-engineering-team
Reviewed By: thcipriani, mobrovac, #release-engineering-team
Tags: #release-engineering-team
Maniphest Tasks: T174623
Differential Revision: https://phabricator.wikimedia.org/D769
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Summary:
Support a `copies` variant config entry that will result in a
multi-stage build, copying both shared library files and application
directory from a previously defined variant. This is essentially a
shorthand for two `artifacts` entries that are likely to be idiomatic to
multi-stage build/prod configurations.
Defined a new abstract `build.CopyFrom` instruction and corresponding
`docker.DockerCopyFrom` instruction and refactored the writing of these
Dockerfile lines to be accomplished using an `InstructionsForPhase`
method on `config.ArtifactsConfig`.
Implemented new support for `copies` configuration in
`config.VariantConfig` and an `InstructionsForPhase` method that returns
`build.CopyFrom` instructions for both the shared library and
application directories.
Fixes T174622
Depends on D759
Test Plan:
Run `go test ./...`. Run `blubber blubber.example.yaml production` and ensure
the right `COPY --from` lines are included for the final stage.
Reviewers: thcipriani, mobrovac, hashar, mmodell, #release-engineering-team
Reviewed By: thcipriani, #release-engineering-team
Tags: #release-engineering-team
Maniphest Tasks: T174622
Differential Revision: https://phabricator.wikimedia.org/D768
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Summary:
Refactored build instructions to use concrete types and
`build.Instruction` as an interface instead of relying on a simple enum
and arbitrary string arguments. The formal types result in:
1. Clearer internal data structures
2. Partial compilation and proper argument quoting for all instructions
moved into the common `build` package
3. Higher order instructions like `build.RunAll` that easily reduce to
compiler specific output
Test Plan: Run `arc unit` or `go test ./...`
Reviewers: thcipriani, mmodell, #release-engineering-team
Reviewed By: thcipriani, #release-engineering-team
Tags: #release-engineering-team
Differential Revision: https://phabricator.wikimedia.org/D741
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Summary:
One of Golang's "advantages" is not quibbling over style. To this end
the `go fmt` command exists. This is the result of me running:
find . -name '*.go' -exec go fmt {} \;
Test Plan: built package, ran tests
Reviewers: dduvall, mmodell, #release-engineering-team
Reviewed By: dduvall, mmodell, #release-engineering-team
Subscribers: hashar
Tags: #release-engineering-team
Differential Revision: https://phabricator.wikimedia.org/D694
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Summary:
Fixes build issues around home permissions by setting `HOME` to the
unprivileged user's home directory once the "privileges dropped" build
phase has been reached.
Test Plan: Run `go test ./...`.
Reviewers: thcipriani, mobrovac, hashar, Jrbranaa, mmodell, #release-engineering-team
Reviewed By: mobrovac
Tags: #release-engineering-team
Differential Revision: https://phabricator.wikimedia.org/D686
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Establish phases within Docker compiler to allow providers (apt, npm,
etc.) to inject their own run/copy instructions into to the Dockerfile
compilation process while leaving the compiler agnostic to the providers
themselves.
The instructions and phases are also generalized to leave room for
alternative compilers should they be needed in the future (e.g. aci
support via acbuild) but also as a general design constraint to leave
compiler implementation concerns out of providers.
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