Commit Graph

9 Commits

Author SHA1 Message Date
Paweł Gronowski 012b77952e
stack: Change unexpected environment variable error
Make the error more specific by stating that it's caused by a specific
environment variable and not an environment as a whole.
Also don't escape the variable to make it more readable.

Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
2023-03-09 16:56:34 +01:00
Paweł Gronowski a47058bbd5
stack/loader: Ignore cmd.exe special env variables
On Windows, ignore all variables that start with "=" when building an
environment variables map for stack.
For MS-DOS compatibility cmd.exe can set some special environment
variables that start with a "=" characters, which breaks the general
assumption that the first encountered "=" separates a variable name from
variable value and causes trouble when parsing.

These variables don't seem to be documented anywhere, but they are
described by some third-party sources and confirmed empirically on my
Windows installation.

Useful sources:
https://devblogs.microsoft.com/oldnewthing/20100506-00/?p=14133
https://ss64.com/nt/syntax-variables.html

Known variables:

- `=ExitCode` stores the exit code returned by external command (in hex
  format)
- `=ExitCodeAscii` - same as above, except the value is the ASCII
  representation of the code (so exit code 65 (0x41) becomes 'A').
- `=::=::\` and friends - store drive specific working directory.
  There is one env variable for each separate drive letter that was
  accessed in the shell session and stores the working directory for that
  specific drive.
  The general format for these is:
    `=<DRIVE_LETTER>:=<CWD>`  (key=`=<DRIVE_LETTER>:`, value=`<CWD>`)
  where <CWD> is a working directory for the drive that is assigned to
  the letter <DRIVE_LETTER>

  A couple of examples:
    `=C:=C:\some\dir`  (key: `=C:`, value: `C:\some\dir`)
    `=D:=D:\some\other\dir`  (key: `=C:`, value: `C:\some\dir`)
    `=Z:=Z:\`  (key: `=Z:`, value: `Z:\`)

  `=::=::\` is the one that seems to be always set and I'm not exactly
  sure what this one is for (what's drive `::`?). Others are set as
  soon as you CD to a path on some drive. Considering that you start a
  cmd.exe also has some working directory, there are 2 of these on start.

All these variables can be safely ignored because they can't be
deliberately set by the user, their meaning is only relevant to the
cmd.exe session and they're all are related to the MS-DOS/Batch feature
that are irrelevant for us.

Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
2023-03-09 16:48:55 +01:00
Sebastiaan van Stijn b3557b2840
cli/command/stack: use strings.Cut
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-12-29 15:19:30 +01:00
Stoica-Marcu Floris-Andrei dfc214115b
Add stack config command
Make use of existing modules and functions in order to output the merged configs.
Added skip interpolation flag of variables, so that you can pipe the output back to stack deploy without much hassle.

Signed-off-by: Stoica-Marcu Floris-Andrei <floris.sm@gmail.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-04-08 14:56:01 +02:00
Sebastiaan van Stijn 4ab70bf61e
linting: fix incorrectly formatted errors (revive)
cli/compose/interpolation/interpolation.go:102:4: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
                "invalid interpolation format for %s: %#v. You may need to escape any $ with another $.",
                ^

    cli/command/stack/loader/loader.go:30:30: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
                return nil, errors.Errorf("Compose file contains unsupported options:\n\n%s\n",
                                          ^

    cli/command/formatter/formatter.go:76:30: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
            return tmpl, errors.Errorf("Template parsing error: %v\n", err)
                                       ^

    cli/command/formatter/formatter.go:97:24: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
            return errors.Errorf("Template parsing error: %v\n", err)
                                 ^

    cli/command/image/build.go:257:25: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
                return errors.Errorf("error checking context: '%s'.", err)
                                     ^

    cli/command/volume/create.go:35:27: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
                        return errors.Errorf("Conflicting options: either specify --name or provide positional arg, not both\n")
                                             ^

    cli/command/container/create.go:160:24: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
            return errors.Errorf("failed to remove the CID file '%s': %s \n", cid.path, err)
                                 ^

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-03-28 10:37:25 +02:00
Sebastiaan van Stijn d59330f40d
cli/command/stack: remove deprecated io/ioutil
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-02-25 15:42:10 +01:00
Sebastiaan van Stijn 99ad13e374
Remove experimental "deploy" from "dab" files
The top-level `docker deploy` command (using the "Docker Application Bundle"
(`.dab`) file format was introduced as an experimental feature in Docker 1.13 /
17.03, but superseded by support for Docker Compose files.

With no development being done on this feature, and no active use of the file
format, support for the DAB file format and the top-level `docker deploy` command
(hidden by default in 19.03), is removed in this patch, in favour of `docker stack deploy`
using compose files.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2019-12-09 10:34:14 +01:00
Vincent Demeester cf86a4d922
Simplify the marshaling of compose types.Config
- Add `Version` to `types.Config`
- Add a new `Services` types (that is just `[]ServiceConfig`) and add
  `MarshalYAML` method on it.
- Clean other top-level custom marshaling as `Services` is the only one
  required.

Signed-off-by: Vincent Demeester <vincent@sbr.pm>
2018-02-21 18:47:10 +01:00
Vincent Demeester 570ee9cb54
Share the compose loading code between swarm and k8s stack deploy
To ensure we are loading the composefile the same wether we are pointing
to swarm or kubernetes, we need to share the loading code between both.

Signed-off-by: Vincent Demeester <vincent@sbr.pm>
2018-02-14 14:07:48 +01:00