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Merge pull request #5762 from SvenDowideit/pr_out_add_some_more_specific_help_for_dockerfile_build_contexts
Add some more specific help for Dockerfile build contexts.
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commit
8887e00630
1 changed files with 9 additions and 1 deletions
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@ -201,7 +201,8 @@ and a "context".
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The files at `PATH` or `URL` are called the "context" of the build. The build
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process may refer to any of the files in the context, for example when using an
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[*ADD*](/reference/builder/#dockerfile-add) instruction. When a single Dockerfile is
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given as `URL`, then no context is set.
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given as `URL` or is piped through STDIN (`docker build - < Dockerfile`), then
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no context is set.
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When a Git repository is set as `URL`, then the
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repository is used as the context. The Git repository is cloned with its
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@ -283,6 +284,13 @@ repository is used as Dockerfile. Note that you
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can specify an arbitrary Git repository by using the `git://`
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schema.
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> **Note:** `docker build` will return a `no such file or directory` error
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> if the file or directory does not exist in the uploaded context. This may
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> happen if there is no context, or if you specify a file that is elsewhere
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> on the Host system. The context is limited to the current directory (and its
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> children) for security reasons, and to ensure repeatable builds on remote
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> Docker hosts. This is also the reason why `ADD ../file` will not work.
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## commit
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Create a new image from a container᾿s changes
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