Guest24897
/
DockerCLI
mirror of https://github.com/docker/cli.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #2743 from thaJeztah/deprecate_legacy_env_format 

deprecate Dockerfile legacy 'ENV name value' syntax
This commit is contained in:
Tibor Vass 2020-09-23 13:39:33 -07:00 committed by GitHub
parent 616e06874e eec6710111
commit db411c35e6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 25 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
docs/deprecated.md
View File

@ -54,6 +54,7 @@ Deprecated | [Kernel memory limit](#kernel-memory-limit)
Deprecated | [Classic Swarm and overlay networks using external key/value stores](#classic-swarm-and-overlay-networks-using-cluster-store) | v20.03.0 | - Deprecated | [Classic Swarm and overlay networks using external key/value stores](#classic-swarm-and-overlay-networks-using-cluster-store) | v20.03.0 | -
Deprecated | [Support for the legacy `~/.dockercfg` configuration file for authentication](#support-for-legacy-dockercfg-configuration-files) | v20.03.0 | - Deprecated | [Support for the legacy `~/.dockercfg` configuration file for authentication](#support-for-legacy-dockercfg-configuration-files) | v20.03.0 | -
Deprecated | [CLI plugins support](#cli-plugins-support) | v20.03.0 | - Deprecated | [CLI plugins support](#cli-plugins-support) | v20.03.0 | -
Deprecated | [Dockerfile legacy `ENV name value` syntax](#dockerfile-legacy-env-name-value-syntax) | v20.03.0 | -
Deprecated | [Pushing and pulling with image manifest v2 schema 1](#pushing-and-pulling-with-image-manifest-v2-schema-1) | v19.03.0 | v20.03.0 Deprecated | [Pushing and pulling with image manifest v2 schema 1](#pushing-and-pulling-with-image-manifest-v2-schema-1) | v19.03.0 | v20.03.0
Removed | [`docker engine` subcommands](#docker-engine-subcommands) | v19.03.0 | v20.03.0 Removed | [`docker engine` subcommands](#docker-engine-subcommands) | v19.03.0 | v20.03.0
Removed | [Top-level `docker deploy` subcommand (experimental)](#top-level-docker-deploy-subcommand-experimental) | v19.03.0 | v20.03.0 Removed | [Top-level `docker deploy` subcommand (experimental)](#top-level-docker-deploy-subcommand-experimental) | v19.03.0 | v20.03.0
@ -129,6 +130,30 @@ for this file will be removed in a future release.
CLI Plugin API is now marked as deprecated. CLI Plugin API is now marked as deprecated.
### Dockerfile legacy `ENV name value` syntax
**Deprecated in Release: v20.03.0**
The Dockerfile `ENV` instruction allows values to be set using either `ENV name=value`
or `ENV name value`. The latter (`ENV name value`) form can be ambiguous, for example,
the following defines a single env-variable (`ONE`) with value `"TWO= THREE=world"`,
but may have intended to be setting three env-vars:
```dockerfile
ENV ONE TWO= THREE=world
```
This format also does not allow setting multiple environment-variables in a single
`ENV` line in the Dockerfile.
Use of the `ENV name value` syntax is discouraged, and may be removed in a future
release. Users are encouraged to update their Dockerfiles to use the `ENV name=value`
syntax, for example:
```dockerfile
ENV ONE="" TWO="" THREE="world"
```
### Pushing and pulling with image manifest v2 schema 1 ### Pushing and pulling with image manifest v2 schema 1
**Deprecated in Release: v19.03.0** **Deprecated in Release: v19.03.0**