ansible-lint

ansible-lint documentation

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See How to configure ansible-lint rules
- If custom .ansible-lint.yml config file is not found, .ansible-lint.yml will be used
See How to disable ansible-lint rules in files
See Index of problems detected by ansible-lint

Configuration in MegaLinter

Enable ansible-lint by adding ANSIBLE_ANSIBLE_LINT in ENABLE_LINTERS variable
Disable ansible-lint by adding ANSIBLE_ANSIBLE_LINT in DISABLE_LINTERS variable

Variable	Description	Default value
ANSIBLE_ANSIBLE_LINT_ARGUMENTS	User custom arguments to add in linter CLI call Ex: `-s --foo "bar"`
ANSIBLE_ANSIBLE_LINT_FILTER_REGEX_INCLUDE	Custom regex including filter Ex: `(src\\|lib)`	Include every file
ANSIBLE_ANSIBLE_LINT_FILTER_REGEX_EXCLUDE	Custom regex excluding filter Ex: `(test\\|examples)`	Exclude no file
ANSIBLE_ANSIBLE_LINT_CLI_LINT_MODE	Override default CLI lint mode - `file`: Calls the linter for each file - `list_of_files`: Call the linter with the list of files as argument - `project`: Call the linter from the root of the project	`{linter.cli_lint_mode}`
ANSIBLE_ANSIBLE_LINT_FILE_EXTENSIONS	Allowed file extensions. `"*"` matches any extension, `""` matches empty extension. Empty list excludes all files Ex: `[".py", ""]`	`[".yml", ".yaml"]`
ANSIBLE_ANSIBLE_LINT_FILE_NAMES_REGEX	File name regex filters. Regular expression list for filtering files by their base names using regex full match. Empty list includes all files Ex: `["Dockerfile(-.+)?", "Jenkinsfile"]`	Include every file
ANSIBLE_ANSIBLE_LINT_PRE_COMMANDS	List of bash commands to run before the linter	None
ANSIBLE_ANSIBLE_LINT_POST_COMMANDS	List of bash commands to run after the linter	None
ANSIBLE_ANSIBLE_LINT_CONFIG_FILE	ansible-lint configuration file name Use `LINTER_DEFAULT` to let the linter find it	`.ansible-lint.yml`
ANSIBLE_ANSIBLE_LINT_RULES_PATH	Path where to find linter configuration file	Workspace folder, then MegaLinter default rules
ANSIBLE_ANSIBLE_LINT_DISABLE_ERRORS	Run linter but consider errors as warnings	`false`
ANSIBLE_ANSIBLE_LINT_DISABLE_ERRORS_IF_LESS_THAN	Maximum number of errors allowed	`0`
ANSIBLE_DIRECTORY	Directory containing ANSIBLE files	`ansible`

MegaLinter Flavours

This linter is available in the following flavours

Flavor	Description	Embedded linters
all	Default MegaLinter Flavor	95
dart	Optimized for DART based projects	41
documentation	MegaLinter for documentation projects	40
dotnet	Optimized for C, C++, C# or VB based projects	47
go	Optimized for GO based projects	42
java	Optimized for JAVA based projects	42
javascript	Optimized for JAVASCRIPT or TYPESCRIPT based projects	49
php	Optimized for PHP based projects	44
python	Optimized for PYTHON based projects	49
ruby	Optimized for RUBY based projects	41
rust	Optimized for RUST based projects	41
salesforce	Optimized for Salesforce based projects	43
scala	Optimized for SCALA based projects	41
swift	Optimized for SWIFT based projects	41
terraform	Optimized for TERRAFORM based projects	46

Behind the scenes

How are identified applicable files

Activated only if sub-directory ansible is found. (directory name can be overridden with ANSIBLE_DIRECTORY)
File extensions: .yml, .yaml
File name do not ends with: vault.yml, vault.yaml, galaxy.yml, galaxy.yaml

How the linting is performed

ansible-lint is called one time by identified file

Example calls

ansible-lint -v myfile.yml

ansible-lint -v -c .ansible-lint.yml myfile.yml

Help content

usage: ansible-lint [-h] [-L] [-f {rich,plain,rst}] [-q] [-p]
                    [--parseable-severity] [--progressive] [-r RULESDIR] [-R]
                    [--show-relpath] [-t TAGS] [-T] [-v] [-x SKIP_LIST]
                    [-w WARN_LIST] [--nocolor] [--force-color]
                    [--exclude EXCLUDE_PATHS] [-c CONFIG_FILE] [--version]
                    [playbook [playbook ...]]

positional arguments:
  playbook              One or more files or paths. When missing it will
                        enable auto-detection mode.

optional arguments:
  -h, --help            show this help message and exit
  -L                    list all the rules
  -f {rich,plain,rst}   Format used rules output, (default: rich)
  -q                    quieter, although not silent output
  -p                    parseable output in the format of pep8
  --parseable-severity  parseable output including severity of rule
  --progressive         Return success if it detects a reduction in number of
                        violations compared with previous git commit. This
                        feature works only in git repositories.
  -r RULESDIR           Specify custom rule directories. Add -R to keep using
                        embedded rules from /usr/lib/python3.8/site-
                        packages/ansiblelint/rules
  -R                    Keep default rules when using -r
  --show-relpath        Display path relative to CWD
  -t TAGS               only check rules whose id/tags match these values
  -T                    list all the tags
  -v                    Increase verbosity level
  -x SKIP_LIST          only check rules whose id/tags do not match these
                        values
  -w WARN_LIST          only warn about these rules, unless overridden in
                        config file defaults to 'experimental'
  --nocolor             disable colored output
  --force-color         Try force colored output (relying on ansible's code)
  --exclude EXCLUDE_PATHS
                        path to directories or files to skip. This option is
                        repeatable.
  -c CONFIG_FILE        Specify configuration file to use. Defaults to
                        ".ansible-lint"
  --version             show program's version number and exit

Installation on mega-linter Docker image

APK packages (Linux):
- ansible
- ansible-lint

Example success log

Results of ansible-lint linter (version 4.2.0)
See documentation on https://megalinter.github.io/descriptors/ansible_ansible_lint/
-----------------------------------------------

[SUCCESS] .automation/test/ansible/ansible/ansible_good_1.yml
    Examining .automation/test/ansible/ansible/ansible_good_1.yml of type playbook
    Examining .automation/test/ansible/ansible/ghe-initialize/tasks/ghe-api-config-apply.yml of type tasks
    Examining .automation/test/ansible/ansible/ghe-initialize/tasks/ghe-config-apply.yml of type tasks
    Examining .automation/test/ansible/ansible/ghe-initialize/tasks/collectd-settings.yml of type tasks
    Examining .automation/test/ansible/ansible/ghe-initialize/tasks/ghe-ldap-configuration.yml of type tasks
    Examining .automation/test/ansible/ansible/ghe-initialize/tasks/splunk-settings.yml of type tasks
    Examining .automation/test/ansible/ansible/ghe-initialize/tasks/main.yml of type tasks
    Examining .automation/test/ansible/ansible/ghe-initialize/tasks/ghe-initial-configuration.yml of type tasks
    Examining .automation/test/ansible/ansible/ghe-initialize/handlers/main.yml of type handlers

Example error log

Results of ansible-lint linter (version 4.2.0)
See documentation on https://megalinter.github.io/descriptors/ansible_ansible_lint/
-----------------------------------------------

[ERROR] .automation/test/ansible/ansible/ansible_bad_1.yml
    Traceback (most recent call last):
      File "/usr/bin/ansible-lint", line 11, in <module>
        load_entry_point('ansible-lint==4.2.0', 'console_scripts', 'ansible-lint')()
      File "/usr/lib/python3.8/site-packages/ansiblelint/__main__.py", line 187, in main
        matches.extend(runner.run())
      File "/usr/lib/python3.8/site-packages/ansiblelint/__init__.py", line 267, in run
        for child in ansiblelint.utils.find_children(arg, self.playbook_dir):
      File "/usr/lib/python3.8/site-packages/ansiblelint/utils.py", line 163, in find_children
        for child in play_children(basedir, item, playbook[1], playbook_dir):
      File "/usr/lib/python3.8/site-packages/ansiblelint/utils.py", line 215, in play_children
        return delegate_map[k](basedir, k, v, parent_type)
      File "/usr/lib/python3.8/site-packages/ansiblelint/utils.py", line 246, in _taskshandlers_children
        results.extend(_roles_children(basedir, k, [th['action'].get('name')],
      File "/usr/lib/python3.8/site-packages/ansiblelint/utils.py", line 285, in _roles_children
        results.extend(_look_for_role_files(basedir, role, main=main))
      File "/usr/lib/python3.8/site-packages/ansiblelint/utils.py", line 330, in _look_for_role_files
        role_path = _rolepath(basedir, role)
      File "/usr/lib/python3.8/site-packages/ansiblelint/utils.py", line 299, in _rolepath
        path_dwim(basedir, os.path.join('roles', role)),
      File "/usr/lib/python3.8/posixpath.py", line 90, in join
        genericpath._check_arg_types('join', a, *p)
      File "/usr/lib/python3.8/genericpath.py", line 152, in _check_arg_types
        raise TypeError(f'{funcname}() argument must be str, bytes, or '
    TypeError: join() argument must be str, bytes, or os.PathLike object, not 'NoneType'