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Diffstat (limited to 'doc/ci/variables/README.md')
| -rw-r--r-- | doc/ci/variables/README.md | 110 |
1 files changed, 63 insertions, 47 deletions
diff --git a/doc/ci/variables/README.md b/doc/ci/variables/README.md index 42dd4f08ed8..5a15b907da0 100644 --- a/doc/ci/variables/README.md +++ b/doc/ci/variables/README.md @@ -94,7 +94,10 @@ This means that the value of the variable will be hidden in job logs, though it must match certain requirements to do so: - The value must be in a single line. -- The value must only consist of characters from the Base64 alphabet, defined in [RFC4648](https://tools.ietf.org/html/rfc4648). +- The value must only consist of characters from the Base64 alphabet (RFC4648). + + [In GitLab 12.2](https://gitlab.com/gitlab-org/gitlab-ce/issues/63043) + and newer, `@` and `:` are also valid values. - The value must be at least 8 characters long. - The value must not use variables. @@ -273,6 +276,7 @@ export CI_RUNNER_ID="10" export CI_RUNNER_DESCRIPTION="my runner" export CI_RUNNER_TAGS="docker, linux" export CI_SERVER="yes" +export CI_SERVER_HOST="example.com" export CI_SERVER_NAME="GitLab" export CI_SERVER_REVISION="70606bf" export CI_SERVER_VERSION="8.9.0" @@ -369,8 +373,11 @@ variables take precedence over those defined in `.gitlab-ci.yml`. ## Unsupported variables There are cases where some variables cannot be used in the context of a -`.gitlab-ci.yml` definition (for example under `script`). Read more -about which variables are [not supported](where_variables_can_be_used.md). +`.gitlab-ci.yml` definition (for example under `script`). Read more about which variables are [not supported](where_variables_can_be_used.md). + +## Where variables can be used + +Click [here](where_variables_can_be_used.md) for a section that describes where and how the different types of variables can be used. ## Advanced use @@ -389,7 +396,7 @@ Protected variables can be added by going to your project's Once you set them, they will be available for all subsequent pipelines. -### Limiting environment scopes of environment variables **(PREMIUM)** +### Limiting environment scopes of environment variables You can limit the environment scope of a variable by [defining which environments][envs] it can be available for. @@ -480,81 +487,86 @@ Below you can find supported syntax reference: 1. Equality matching using a string - > Example: `$VARIABLE == "some value"` + Examples: - > Example: `$VARIABLE != "some value"` (introduced in GitLab 11.11) + - `$VARIABLE == "some value"` + - `$VARIABLE != "some value"` (introduced in GitLab 11.11) - You can use equality operator `==` or `!=` to compare a variable content to a - string. We support both, double quotes and single quotes to define a string - value, so both `$VARIABLE == "some value"` and `$VARIABLE == 'some value'` - are supported. `"some value" == $VARIABLE` is correct too. + You can use equality operator `==` or `!=` to compare a variable content to a + string. We support both, double quotes and single quotes to define a string + value, so both `$VARIABLE == "some value"` and `$VARIABLE == 'some value'` + are supported. `"some value" == $VARIABLE` is correct too. 1. Checking for an undefined value - > Example: `$VARIABLE == null` + Examples: - > Example: `$VARIABLE != null` (introduced in GitLab 11.11) + - `$VARIABLE == null` + - `$VARIABLE != null` (introduced in GitLab 11.11) - It sometimes happens that you want to check whether a variable is defined - or not. To do that, you can compare a variable to `null` keyword, like - `$VARIABLE == null`. This expression is going to evaluate to truth if - variable is not defined when `==` is used, or to falsey if `!=` is used. + It sometimes happens that you want to check whether a variable is defined + or not. To do that, you can compare a variable to `null` keyword, like + `$VARIABLE == null`. This expression is going to evaluate to truth if + variable is not defined when `==` is used, or to falsey if `!=` is used. 1. Checking for an empty variable - > Example: `$VARIABLE == ""` + Examples: - > Example: `$VARIABLE != ""` (introduced in GitLab 11.11) + - `$VARIABLE == ""` + - `$VARIABLE != ""` (introduced in GitLab 11.11) - If you want to check whether a variable is defined, but is empty, you can - simply compare it against an empty string, like `$VAR == ''` or non-empty - string `$VARIABLE != ""`. + If you want to check whether a variable is defined, but is empty, you can + simply compare it against an empty string, like `$VAR == ''` or non-empty + string `$VARIABLE != ""`. 1. Comparing two variables - > Example: `$VARIABLE_1 == $VARIABLE_2` + Examples: - > Example: `$VARIABLE_1 != $VARIABLE_2` (introduced in GitLab 11.11) + - `$VARIABLE_1 == $VARIABLE_2` + - `$VARIABLE_1 != $VARIABLE_2` (introduced in GitLab 11.11) - It is possible to compare two variables. This is going to compare values - of these variables. + It is possible to compare two variables. This is going to compare values + of these variables. 1. Variable presence check - > Example: `$STAGING` + Example: `$STAGING` - If you only want to create a job when there is some variable present, - which means that it is defined and non-empty, you can simply use - variable name as an expression, like `$STAGING`. If `$STAGING` variable - is defined, and is non empty, expression will evaluate to truth. - `$STAGING` value needs to a string, with length higher than zero. - Variable that contains only whitespace characters is not an empty variable. + If you only want to create a job when there is some variable present, + which means that it is defined and non-empty, you can simply use + variable name as an expression, like `$STAGING`. If `$STAGING` variable + is defined, and is non empty, expression will evaluate to truth. + `$STAGING` value needs to a string, with length higher than zero. + Variable that contains only whitespace characters is not an empty variable. 1. Pattern matching (introduced in GitLab 11.0) - > Example: `$VARIABLE =~ /^content.*/` + Examples: - > Example: `$VARIABLE_1 !~ /^content.*/` (introduced in GitLab 11.11) + - `$VARIABLE =~ /^content.*/` + - `$VARIABLE_1 !~ /^content.*/` (introduced in GitLab 11.11) - It is possible perform pattern matching against a variable and regular - expression. Expression like this evaluates to truth if matches are found - when using `=~`. It evaluates to truth if matches are not found when `!~` is used. + It is possible perform pattern matching against a variable and regular + expression. Expression like this evaluates to truth if matches are found + when using `=~`. It evaluates to truth if matches are not found when `!~` is used. - Pattern matching is case-sensitive by default. Use `i` flag modifier, like - `/pattern/i` to make a pattern case-insensitive. + Pattern matching is case-sensitive by default. Use `i` flag modifier, like + `/pattern/i` to make a pattern case-insensitive. 1. Conjunction / Disjunction ([introduced](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/27925) in GitLab 12.0) - > Example: `$VARIABLE1 =~ /^content.*/ && $VARIABLE2 == "something"` - - > Example: `$VARIABLE1 =~ /^content.*/ && $VARIABLE2 =~ /thing$/ && $VARIABLE3` + Examples: - > Example: `$VARIABLE1 =~ /^content.*/ || $VARIABLE2 =~ /thing$/ && $VARIABLE3` + - `$VARIABLE1 =~ /^content.*/ && $VARIABLE2 == "something"` + - `$VARIABLE1 =~ /^content.*/ && $VARIABLE2 =~ /thing$/ && $VARIABLE3` + - `$VARIABLE1 =~ /^content.*/ || $VARIABLE2 =~ /thing$/ && $VARIABLE3` - It is possible to join multiple conditions using `&&` or `||`. Any of the otherwise - supported syntax may be used in a conjunctive or disjunctive statement. - Precedence of operators follows standard Ruby 2.5 operation - [precedence](https://ruby-doc.org/core-2.5.0/doc/syntax/precedence_rdoc.html). + It is possible to join multiple conditions using `&&` or `||`. Any of the otherwise + supported syntax may be used in a conjunctive or disjunctive statement. + Precedence of operators follows standard Ruby 2.5 operation + [precedence](https://ruby-doc.org/core-2.5.0/doc/syntax/precedence_rdoc.html). ## Debug tracing @@ -644,6 +656,8 @@ Running on runner-8a2f473d-project-1796893-concurrent-0 via runner-8a2f473d-mach ++ CI_PROJECT_DIR=/builds/gitlab-examples/ci-debug-trace ++ export CI_SERVER=yes ++ CI_SERVER=yes +++ export 'CI_SERVER_HOST=example.com' +++ CI_SERVER_HOST='example.com' ++ export 'CI_SERVER_NAME=GitLab CI' ++ CI_SERVER_NAME='GitLab CI' ++ export CI_SERVER_VERSION= @@ -678,6 +692,8 @@ Running on runner-8a2f473d-project-1796893-concurrent-0 via runner-8a2f473d-mach ++ CI_JOB_NAME=debug_trace ++ export CI_JOB_STAGE=test ++ CI_JOB_STAGE=test +++ export CI_SERVER_HOST=example.com +++ CI_SERVER_HOST=example.com ++ export CI_SERVER_NAME=GitLab ++ CI_SERVER_NAME=GitLab ++ export CI_SERVER_VERSION=8.14.3-ee |