v1.2.5

For user

• Correctly parsing virtually any dockerfile

For developer

• Used new lts-10.0 stack
• Upgraded the ShellCheck version to 0.4.7
• Using the separate language-docker library as the dockerfile parser
• Renamed the type Check to RuleCheck

v1.2.4

For user

• Added Alpine apk support #134
• Added support for -qq option in apt-get #138
• Added fallback version if binary is compiled without git (brew installation) #136
• Added Hadolint Integrations page for Travis and editors #129
• Improvements in the project README thanks to @proinsias #130 and @samiralajmovic #128
• Fixed ENV parameters separated by multiple spaces causing parse error #50 in #127

For developer

• Seperated parsing and used the language-docker package
• Used new lts-9.18 stack
• Linted all haskell fles using hindent

v1.2.3

For user

• Remove deprecated MAINTAINER and set error for it (fixes #71)
• Catch missing arg in COPY (fixes #56)
• Catch missing arg in EXPOSE (fixes #56)
• Exit with error if no Dockerfile is provided or Dockerfile cannot be parsed (fixes #95)
• Accept pip install pinning with --user or --disable-pip-version-check or --no-cache-dir (fixes #67, #115 )
• Output of --version now show version as git describe (fixes #86)
• Check for latest tag in named image in FROM (fixes #108)
• Check for root defined as UID 0 or root with group (fixes #109)
• Support for npm version pinning in DL3016
• Reduced size of release binaries #117
• Reduced size of docker image to 5 MB #97

For developer

• Update stack from lts-5.9 to lts-9.14
• Update ShellCheck-0.4.4 to ShellCheck-0.4.6
• Multistage build of Docker image to minimalize size #97
• Compile static binaries for Linux and Windows #100
• Travis now test build with lts-9.14, the latest LTS and nightly (which is allowed to fail) stack #102

v1.2.3-rc1

For user

• Remove deprecated MAINTAINER and set error for it (fixes #71)
• Catch missing arg in COPY (fixes #56)
• Catch missing arg in EXPOSE (fixes #56)
• Exit with error if no Dockerfile is provided or Dockerfile cannot be parsed (fixes #95)
• Accept pip install pinning with --user or --disable-pip-version-check or --no-cache-dir (fixes #67, #115 )
• Output of --version now show version as git describe (fixes #86)
• Check for latest tag in named image in FROM (fixes #108)
• Check for root defined as UID 0 or root with group (fixes #109)
• Support for npm version pinning in DL3016
• Reduced size of release binaries #117

For developer

• Update stack from lts-5.9 to lts-9.14
• Update ShellCheck-0.4.4 to ShellCheck-0.4.6
• Multistage build of Docker image to minimalize size
• Compile static binaries for Linux and Windows
• Travis now test build with lts-9.14, the latest LTS and nightly (which is allowed to fail) stack #102

v1.2.2

Implemented enhancements:

• Rule suggestion: Recommend SHELL \["/bin/bash", "-c"\] instead of RUN /bin/bash -c "..." #58
• two forms of output #57
• Issue 68: Add supported file suffixes for DL3020 #69 (j3p0uk)
• Unified error formatting #66 (lukasmartinelli)
• Parse HEALTHCHECK #65 (lukasmartinelli)
• Add "use SHELL" rule for ln with /bin/sh #61 (backus)
• Add support for parsing SHELL instruction #60 (backus)

Fixed bugs:

• Online demo at http://hadolint.lukasmartinelli.ch/ broken (404 and CORS errors) #37

Closed issues:

• Support HEALTHCHECK instruction #62

v1.2.1

• Ensure works with homebrew #52

v1.2

• Add missing --version flag
• Support multiple Docker files
• Remove yet unsupported --json flag

Thanks @ye for the suggestions.

v1.1

Implemented enhancements:

• Better usage page and better validating cli parameters. #13
• Display Dockerfile path when showing the results #9
• Homebrew installation, release? #8
• Add more archive types #34 #47 (lukasmartinelli)
• Better CLI interface #44 (lukasmartinelli)
• Use HSpec #43 (lukasmartinelli)

Fixed bugs:

• DL3013 rule pip version pinning does not catch pip3 lines #48
• PIP pinning failures #36
• Add more archive suffixes for add vs copy check #34
• Parsing fails when environment variables are set as "ENV " #22
• Parse fails with multiline comments #21
• Parsing fails when there is a newline in ENV #7
• Add more archive types #34 #47 (lukasmartinelli)
• Fix pip pinning #46 (lukasmartinelli)

Merged pull requests:

• Fix a typo in README #39 (dtan4)
• Display Dockerfile path with results #35 (wfleming)

v1.0

A smarter Dockerfile linter that helps you build best practice Docker images. The linter is parsing the Dockerfile into an AST and performs rules on top of the AST. It is standing on the shoulders of Shellcheck to lint the Bash code inside RUN instructions.