These are the docs for an older version of OPA. Latest stable release is v0.41.0
CLI Edit

The OPA executable provides the following commands.

opa bench

Benchmark a Rego query

Synopsis

Benchmark a Rego query and print the results.

The benchmark command works very similar to ‘eval’ and will evaluate the query in the same fashion. The evaluation will be repeated a number of times and performance results will be returned.

Example with bundle and input data:

opa bench -b ./policy-bundle -i input.json 'data.authz.allow'

To enable more detailed analysis use the –metrics and –benchmem flags.

The optional “gobench” output format conforms to the Go Benchmark Data Format.

opa bench <query> [flags]

Options

      --benchmem                       report memory allocations with benchmark results (default true)
  -b, --bundle string                  set bundle file(s) or directory path(s). This flag can be repeated.
      --count int                      number of times to repeat each benchmark (default 1)
  -d, --data string                    set policy or data file(s). This flag can be repeated.
      --fail                           exits with non-zero exit code on undefined/empty result and errors (default true)
  -f, --format {json,pretty,gobench}   set output format (default pretty)
  -h, --help                           help for bench
      --ignore strings                 set file and directory names to ignore during loading (e.g., '.*' excludes hidden files)
      --import string                  set query import(s). This flag can be repeated.
  -i, --input string                   set input file path
      --metrics                        report query performance metrics (default true)
      --package string                 set query package
  -p, --partial                        perform partial evaluation
  -s, --schema string                  set schema file path or directory path
      --stdin                          read query from stdin
  -I, --stdin-input                    read input document from stdin
  -t, --target {rego,wasm}             set the runtime to exercise (default rego)
  -u, --unknowns stringArray           set paths to treat as unknown during partial evaluation (default [input])

opa build

Build an OPA bundle

Synopsis

Build an OPA bundle.

The ‘build’ command packages OPA policy and data files into bundles. Bundles are gzipped tarballs containing policies and data. Paths referring to directories are loaded recursively.

$ ls
example.rego

$ opa build -b .

You can load bundles into OPA on the command-line:

$ ls
bundle.tar.gz example.rego

$ opa run bundle.tar.gz

You can also configure OPA to download bundles from remote HTTP endpoints:

$ opa run --server \
    --set bundles.example.resource=bundle.tar.gz \
    --set services.example.url=http://localhost:8080

Inside another terminal in the same directory, serve the bundle via HTTP:

$ python3 -m http.server --bind localhost 8080

For more information on bundles see https://www.openpolicyagent.org/docs/latest/management-bundles/.

Common Flags

When -b is specified the ‘build’ command assumes paths refer to existing bundle files or directories following the bundle structure. If multiple bundles are provided, their contents are merged. If there are any merge conflicts (e.g., due to conflicting bundle roots), the command fails. When loading an existing bundle file, the .manifest from the input bundle will be included in the output bundle. Flags that set .manifest fields (such as –revision) override input bundle .manifest fields.

The -O flag controls the optimization level. By default, optimization is disabled (-O=0). When optimization is enabled the ‘build’ command generates a bundle that is semantically equivalent to the input files however the structure of the files in the bundle may have been changed by rewriting, inlining, pruning, etc. Higher optimization levels may result in longer build times.

The ‘build’ command supports targets (specified by -t):

rego    The default target emits a bundle containing a set of policy and data files
        that are semantically equivalent to the input files. If optimizations are
        disabled the output may simply contain a copy of the input policy and data
        files. If optimization is enabled at least one entrypoint (-e) must be supplied.

wasm    The wasm target emits a bundle containing a WebAssembly module compiled from
        the input files for each specified entrypoint. The bundle may contain the
        original policy or data files.

The -e flag tells the ‘build’ command which documents will be queried by the software asking for policy decisions, so that it can focus optimization efforts and ensure that document is not eliminated by the optimizer.

Signing

The ‘build’ command can be used to verify the signature of a signed bundle and also to generate a signature for the output bundle the command creates.

If the directory path(s) provided to the ‘build’ command contain a “.signatures.json” file, it will attempt to verify the signatures included in that file. The bundle files or directory path(s) to verify must be specified using –bundle.

For more information on the bundle signing and verification, see https://www.openpolicyagent.org/docs/latest/management-bundles/#signing.

Example:

$ opa build --verification-key /path/to/public_key.pem --signing-key /path/to/private_key.pem --bundle foo

Where foo has the following structure:

foo/
  |
  +-- bar/
  |     |
  |     +-- data.json
  |
  +-- policy.rego
  |
  +-- .manifest
  |
  +-- .signatures.json

The ‘build’ command will verify the signatures using the public key provided by the –verification-key flag. The default signing algorithm is RS256 and the –signing-alg flag can be used to specify a different one. The –verification-key-id and –scope flags can be used to specify the name for the key provided using the –verification-key flag and scope to use for bundle signature verification respectively.

If the verification succeeds, the ‘build’ command will write out an updated “.signatures.json” file to the output bundle. It will use the key specified by the –signing-key flag to sign the token in the “.signatures.json” file.

To include additional claims in the payload use the –claims-file flag to provide a JSON file containing optional claims.

For more information on the format of the “.signatures.json” file see https://www.openpolicyagent.org/docs/latest/management-bundles/#signature-format.

Capabilities

The ‘build’ command can validate policies against a configurable set of OPA capabilities. The capabilities define the built-in functions and other language features that policies may depend on. For example, the following capabilities file only permits the policy to depend on the “plus” built-in function ('+'):

{
    "builtins": [
        {
            "name": "plus",
            "infix": "+",
            "decl": {
                "type": "function",
                "args": [
                    {
                        "type": "number"
                    },
                    {
                        "type": "number"
                    }
                ],
                "result": {
                    "type": "number"
                }
            }
        }
    ]
}

Capabilities can be used to validate policies against a specific version of OPA. The OPA repository contains a set of capabilities files for each OPA release. For example, the following command builds a directory of policies ('./policies') and validates them against OPA v0.22.0:

opa build ./policies --capabilities $OPA_SRC/capabilities/v0.22.0.json
opa build <path> [<path> [...]] [flags]

Options

  -b, --bundle                         load paths as bundle files or root directories
      --capabilities string            set capabilities.json file path
      --claims-file string             set path of JSON file containing optional claims (see: https://www.openpolicyagent.org/docs/latest/management-bundles/#signature-format)
      --debug                          enable debug output
  -e, --entrypoint string              set slash separated entrypoint path
      --exclude-files-verify strings   set file names to exclude during bundle verification
  -h, --help                           help for build
      --ignore strings                 set file and directory names to ignore during loading (e.g., '.*' excludes hidden files)
  -O, --optimize int                   set optimization level
  -o, --output string                  set the output filename (default "bundle.tar.gz")
  -r, --revision string                set output bundle revision
      --scope string                   scope to use for bundle signature verification
      --signing-alg string             name of the signing algorithm (default "RS256")
      --signing-key string             set the secret (HMAC) or path of the PEM file containing the private key (RSA and ECDSA)
      --signing-plugin string          name of the plugin to use for signing/verification (see https://www.openpolicyagent.org/docs/latest/management-bundles/#signature-plugin
  -t, --target {rego,wasm,plan}        set the output bundle target type (default rego)
      --verification-key string        set the secret (HMAC) or path of the PEM file containing the public key (RSA and ECDSA)
      --verification-key-id string     name assigned to the verification key used for bundle verification (default "default")

opa check

Check Rego source files

Synopsis

Check Rego source files for parse and compilation errors.

If the ‘check’ command succeeds in parsing and compiling the source file(s), no output is produced. If the parsing or compiling fails, ‘check’ will output the errors and exit with a non-zero exit code.

opa check <path> [path [...]] [flags]

Options

  -b, --bundle                 load paths as bundle files or root directories
      --capabilities string    set capabilities.json file path
  -f, --format {pretty,json}   set output format (default pretty)
  -h, --help                   help for check
      --ignore strings         set file and directory names to ignore during loading (e.g., '.*' excludes hidden files)
  -m, --max-errors int         set the number of errors to allow before compilation fails early (default 10)
  -s, --schema string          set schema file path or directory path
  -S, --strict                 enable compiler strict mode

opa deps

Analyze Rego query dependencies

opa deps <query> [flags]

Options

  -b, --bundle string          set bundle file(s) or directory path(s). This flag can be repeated.
  -d, --data string            set policy or data file(s). This flag can be repeated.
  -f, --format {pretty,json}   set output format (default pretty)
  -h, --help                   help for deps
      --ignore strings         set file and directory names to ignore during loading (e.g., '.*' excludes hidden files)

opa eval

Evaluate a Rego query

Synopsis

Evaluate a Rego query and print the result.

Examples

To evaluate a simple query:

$ opa eval 'x = 1; y = 2; x < y'

To evaluate a query against JSON data:

$ opa eval --data data.json 'data.names[_] = name'

To evaluate a query against JSON data supplied with a file:// URL:

$ opa eval --data file:///path/to/file.json 'data'

File & Bundle Loading

The –bundle flag will load data files and Rego files contained in the bundle specified by the path. It can be either a compressed tar archive bundle file or a directory tree.

$ opa eval --bundle /some/path 'data'

Where /some/path contains:

foo/
  |
  +-- bar/
  |     |
  |     +-- data.json
  |
  +-- baz.rego
  |
  +-- manifest.yaml

The JSON file ‘foo/bar/data.json’ would be loaded and rooted under ‘data.foo.bar’ and the ‘foo/baz.rego’ would be loaded and rooted under the package path contained inside the file. Only data files named data.json or data.yaml will be loaded. In the example above the manifest.yaml would be ignored.

See https://www.openpolicyagent.org/docs/latest/management-bundles/ for more details on bundle directory structures.

The –data flag can be used to recursively load ALL *.rego, *.json, and *.yaml files under the specified directory.

Output Formats

Set the output format with the –format flag.

--format=json      : output raw query results as JSON
--format=values    : output line separated JSON arrays containing expression values
--format=bindings  : output line separated JSON objects containing variable bindings
--format=pretty    : output query results in a human-readable format
--format=source    : output partial evaluation results in a source format
--format=raw       : output the values from query results in a scripting friendly format

Schema

The -s/–schema flag provides one or more JSON Schemas used to validate references to the input or data documents. Loads a single JSON file, applying it to the input document; or all the schema files under the specified directory.

$ opa eval --data policy.rego --input input.json --schema schema.json
$ opa eval --data policy.rego --input input.json --schema schemas/

Capabilities

When passing a capabilities definition file via –capabilities, one can restrict which hosts remote schema definitions can be retrieved from. For example, a capabilities.json containing

{
    "builtins": [ ... ],
    "allow_net": [ "kubernetesjsonschema.dev" ]
}

would disallow fetching remote schemas from any host but “kubernetesjsonschema.dev”. Setting allow_net to an empty array would prohibit fetching any remote schemas.

Not providing a capabilities file, or providing a file without an allow_net key, will permit fetching remote schemas from any host.

Note that the metaschemas http://json-schema.org/draft-04/schema, http://json-schema.org/draft-06/schema, and http://json-schema.org/draft-07/schema, are always available, even without network access.

opa eval <query> [flags]

Options

  -b, --bundle string                                     set bundle file(s) or directory path(s). This flag can be repeated.
      --capabilities string                               set capabilities.json file path
      --count int                                         number of times to repeat each benchmark (default 1)
      --coverage                                          report coverage
  -d, --data string                                       set policy or data file(s). This flag can be repeated.
      --disable-early-exit                                disable 'early exit' optimizations
      --disable-indexing                                  disable indexing optimizations
      --disable-inlining stringArray                      set paths of documents to exclude from inlining
      --explain {off,full,notes,fails}                    enable query explanations (default off)
      --fail                                              exits with non-zero exit code on undefined/empty result and errors
      --fail-defined                                      exits with non-zero exit code on defined/non-empty result and errors
  -f, --format {json,values,bindings,pretty,source,raw}   set output format (default json)
  -h, --help                                              help for eval
      --ignore strings                                    set file and directory names to ignore during loading (e.g., '.*' excludes hidden files)
      --import string                                     set query import(s). This flag can be repeated.
  -i, --input string                                      set input file path
      --instrument                                        enable query instrumentation metrics (implies --metrics)
      --metrics                                           report query performance metrics
      --package string                                    set query package
  -p, --partial                                           perform partial evaluation
      --pretty-limit int                                  set limit after which pretty output gets truncated (default 80)
      --profile                                           perform expression profiling
      --profile-limit int                                 set number of profiling results to show (default 10)
      --profile-sort string                               set sort order of expression profiler results
  -s, --schema string                                     set schema file path or directory path
      --shallow-inlining                                  disable inlining of rules that depend on unknowns
      --stdin                                             read query from stdin
  -I, --stdin-input                                       read input document from stdin
      --strict-builtin-errors                             treat built-in function errors as fatal
  -t, --target {rego,wasm}                                set the runtime to exercise (default rego)
      --timeout duration                                  set eval timeout (default unlimited)
  -u, --unknowns stringArray                              set paths to treat as unknown during partial evaluation (default [input])

opa exec

Execute against input files

Synopsis

Execute against input files.

The ‘exec’ command executes OPA against one or more input files. If the paths refer to directories, OPA will execute against files contained inside those directories, recursively.

The ‘exec’ command accepts a –config-file/-c or series of –set options as arguments. These options behave the same as way as ‘opa run’. Since the ‘exec’ command is intended to execute OPA in one-shot, the ‘exec’ command will manually trigger plugins before and after policy execution:

Before: Discovery -> Bundle -> Status After: Decision Logs

By default, the ‘exec’ command executes the “default decision” (specified in the OPA configuration) against each input file. This can be overridden by specifying the –decision argument and pointing at a specific policy decision, e.g., opa exec –decision /foo/bar/baz …

opa exec <path> [<path> [...]] [flags]

Options

  -b, --bundle string                        set bundle file(s) or directory path(s). This flag can be repeated.
  -c, --config-file string                   set path of configuration file
      --decision string                      set decision to evaluate
  -f, --format {pretty,json}                 set output format (default pretty)
  -h, --help                                 help for exec
      --log-format {text,json,json-pretty}   set log format (default json)
  -l, --log-level {debug,info,error}         set log level (default error)
      --set stringArray                      override config values on the command line (use commas to specify multiple values)
      --set-file stringArray                 override config values with files on the command line (use commas to specify multiple values)

opa fmt

Format Rego source files

Synopsis

Format Rego source files.

The ‘fmt’ command takes a Rego source file and outputs a reformatted version. If no file path is provided - this tool will use stdin. The format of the output is not defined specifically; whatever this tool outputs is considered correct format (with the exception of bugs).

If the ‘-w’ option is supplied, the ‘fmt’ command with overwrite the source file instead of printing to stdout.

If the ‘-d’ option is supplied, the ‘fmt’ command will output a diff between the original and formatted source.

If the ‘-l’ option is supplied, the ‘fmt’ command will output the names of files that would change if formatted. The ‘-l’ option will suppress any other output to stdout from the ‘fmt’ command.

If the ‘–fail’ option is supplied, the ‘fmt’ command will return a non zero exit code if a file would be reformatted.

opa fmt [path [...]] [flags]

Options

  -d, --diff    only display a diff of the changes
      --fail    non zero exit code on reformat
  -h, --help    help for fmt
  -l, --list    list all files who would change when formatted
  -w, --write   overwrite the original source file

opa inspect

Inspect OPA bundle(s)

Synopsis

Inspect OPA bundle(s).

The ‘inspect’ command provides a summary of the contents in OPA bundle(s). Bundles are gzipped tarballs containing policies and data. The ‘inspect’ command reads bundle(s) and lists the following:

  • packages that are contributed by .rego files
  • data locations defined by the data.json and data.yaml files
  • manifest data
  • signature data
  • information about the Wasm module files

Example:

$ ls bundle.tar.gz

$ opa inspect bundle.tar.gz

You can provide exactly one OPA bundle or path to the ‘inspect’ command on the command-line. If you provide a path referring to a directory, the ‘inspect’ command will load that path as a bundle and summarize its structure and contents.

opa inspect <path> [<path> [...]] [flags]

Options

  -f, --format {json,pretty}   set output format (default pretty)
  -h, --help                   help for inspect

opa parse

Parse Rego source file

Synopsis

Parse Rego source file and print AST.

opa parse <path> [flags]

Options

  -f, --format {pretty,json}   set output format (default pretty)
  -h, --help                   help for parse

opa run

Start OPA in interactive or server mode

Synopsis

Start an instance of the Open Policy Agent (OPA).

To run the interactive shell:

$ opa run

To run the server:

$ opa run -s

The ‘run’ command starts an instance of the OPA runtime. The OPA runtime can be started as an interactive shell or a server.

When the runtime is started as a shell, users can define rules and evaluate expressions interactively. When the runtime is started as a server, OPA exposes an HTTP API for managing policies, reading and writing data, and executing queries.

The runtime can be initialized with one or more files that contain policies or data. If the ‘–bundle’ option is specified the paths will be treated as policy bundles and loaded following standard bundle conventions. The path can be a compressed archive file or a directory which will be treated as a bundle. Without the ‘–bundle’ flag OPA will recursively load ALL rego, JSON, and YAML files.

When loading from directories, only files with known extensions are considered. The current set of file extensions that OPA will consider are:

.json          # JSON data
.yaml or .yml  # YAML data
.rego          # Rego file

Non-bundle data file and directory paths can be prefixed with the desired destination in the data document with the following syntax:

<dotted-path>:<file-path>

To set a data file as the input document in the interactive shell use the “repl.input” path prefix with the input file:

repl.input:<file-path>

Example:

$ opa run repl.input:input.json

Which will load the “input.json” file at path “data.repl.input”.

Use the “help input” command in the interactive shell to see more options.

File paths can be specified as URLs to resolve ambiguity in paths containing colons:

$ opa run file:///c:/path/to/data.json

The ‘run’ command can also verify the signature of a signed bundle. A signed bundle is a normal OPA bundle that includes a file named “.signatures.json”. For more information on signed bundles see https://www.openpolicyagent.org/docs/latest/management-bundles/#signing.

The key to verify the signature of signed bundle can be provided using the –verification-key flag. For example, for RSA family of algorithms, the command expects a PEM file containing the public key. For HMAC family of algorithms (eg. HS256), the secret can be provided using the –verification-key flag.

The –verification-key-id flag can be used to optionally specify a name for the key provided using the –verification-key flag.

The –signing-alg flag can be used to specify the signing algorithm. The ‘run’ command uses RS256 (by default) as the signing algorithm.

The –scope flag can be used to specify the scope to use for bundle signature verification.

Example:

$ opa run --verification-key secret --signing-alg HS256 --bundle bundle.tar.gz

The ‘run’ command will read the bundle “bundle.tar.gz”, check the “.signatures.json” file and perform verification using the provided key. An error will be generated if “bundle.tar.gz” does not contain a “.signatures.json” file. For more information on the bundle verification process see https://www.openpolicyagent.org/docs/latest/management-bundles/#signature-verification.

The ‘run’ command can ONLY be used with the –bundle flag to verify signatures for existing bundle files or directories following the bundle structure.

To skip bundle verification, use the –skip-verify flag.

opa run [flags]

Options

  -a, --addr strings                         set listening address of the server (e.g., [ip]:<port> for TCP, unix://<path> for UNIX domain socket) (default [:8181])
      --authentication {token,tls,off}       set authentication scheme (default off)
      --authorization {basic,off}            set authorization scheme (default off)
  -b, --bundle                               load paths as bundle files or root directories
  -c, --config-file string                   set path of configuration file
      --diagnostic-addr strings              set read-only diagnostic listening address of the server for /health and /metric APIs (e.g., [ip]:<port> for TCP, unix://<path> for UNIX domain socket)
      --exclude-files-verify strings         set file names to exclude during bundle verification
  -f, --format string                        set shell output format, i.e, pretty, json (default "pretty")
      --h2c                                  enable H2C for HTTP listeners
  -h, --help                                 help for run
  -H, --history string                       set path of history file (default "$HOME/.opa_history")
      --ignore strings                       set file and directory names to ignore during loading (e.g., '.*' excludes hidden files)
      --log-format {text,json,json-pretty}   set log format (default json)
  -l, --log-level {debug,info,error}         set log level (default info)
  -m, --max-errors int                       set the number of errors to allow before compilation fails early (default 10)
      --min-tls-version {1.0,1.1,1.2,1.3}    set minimum TLS version to be used by OPA's server (default 1.2)
      --pprof                                enables pprof endpoints
      --ready-timeout int                    wait (in seconds) for configured plugins before starting server (value <= 0 disables ready check)
      --scope string                         scope to use for bundle signature verification
  -s, --server                               start the runtime in server mode
      --set stringArray                      override config values on the command line (use commas to specify multiple values)
      --set-file stringArray                 override config values with files on the command line (use commas to specify multiple values)
      --shutdown-grace-period int            set the time (in seconds) that the server will wait to gracefully shut down (default 10)
      --shutdown-wait-period int             set the time (in seconds) that the server will wait before initiating shutdown
      --signing-alg string                   name of the signing algorithm (default "RS256")
      --skip-verify                          disables bundle signature verification
      --skip-version-check                   disables anonymous version reporting (see: https://www.openpolicyagent.org/docs/latest/privacy)
      --tls-ca-cert-file string              set path of TLS CA cert file
      --tls-cert-file string                 set path of TLS certificate file
      --tls-cert-refresh-period duration     set certificate refresh period
      --tls-private-key-file string          set path of TLS private key file
      --verification-key string              set the secret (HMAC) or path of the PEM file containing the public key (RSA and ECDSA)
      --verification-key-id string           name assigned to the verification key used for bundle verification (default "default")
  -w, --watch                                watch command line files for changes

opa sign

Generate an OPA bundle signature

Synopsis

Generate an OPA bundle signature.

The ‘sign’ command generates a digital signature for policy bundles. It generates a “.signatures.json” file that dictates which files should be included in the bundle, what their SHA hashes are, and is cryptographically secure.

The signatures file is a JSON file with an array containing a single JSON Web Token (JWT) that encapsulates the signature for the bundle.

The –signing-alg flag can be used to specify the algorithm to sign the token. The ‘sign’ command uses RS256 (by default) as the signing algorithm. See https://www.openpolicyagent.org/docs/latest/configuration/#keys for a list of supported signing algorithms.

The key to be used for signing the JWT MUST be provided using the –signing-key flag. For example, for RSA family of algorithms, the command expects a PEM file containing the private key. For HMAC family of algorithms (eg. HS256), the secret can be provided using the –signing-key flag.

OPA ‘sign’ can ONLY be used with the –bundle flag to load paths that refer to existing bundle files or directories following the bundle structure.

$ opa sign --signing-key /path/to/private_key.pem --bundle foo

Where foo has the following structure:

foo/
  |
  +-- bar/
  |     |
  |     +-- data.json
  |
  +-- policy.rego
  |
  +-- .manifest

This will create a “.signatures.json” file in the current directory. The –output-file-path flag can be used to specify a different location for the “.signatures.json” file.

The content of the “.signatures.json” file is shown below:

{
  "signatures": [
	"eyJhbGciOiJSUzI1NiJ9.eyJmaWxlcyI6W3sibmFtZSI6Ii5tYW5pZmVzdCIsImhhc2giOiIxODc0NWRlNzJjMDFlODBjZDlmNTIwZjQxOGMwMDlhYzRkMmMzZDAyYjE3YTUwZTJkMDQyMTU4YmMzNTJhMzJkIiwiYWxnb3JpdGhtIjoiU0hBLTI1NiJ9LHsibmFtZSI6ImJhci9kYXRhLmpzb24iLCJoYXNoIjoiOTNhMjM5NzFhOTE0ZTVlYWNiZjBhOGQyNTE1NGNkYTMwOWMzYzFjNzJmYmI5OTE0ZDQ3YzYwZjNjYjY4MTU4OCIsImFsZ29yaXRobSI6IlNIQS0yNTYifSx7Im5hbWUiOiJwb2xpY3kucmVnbyIsImhhc2giOiJkMGYyNDJhYWUzNGRiNTRlZjU2NmJlYTRkNDVmY2YxOTcwMGM1ZDhmODdhOWRiOTMyZGZhZDZkMWYwZjI5MWFjIiwiYWxnb3JpdGhtIjoiU0hBLTI1NiJ9XX0.lNsmRqrmT1JI4Z_zpY6IzHRZQAU306PyOjZ6osquixPuTtdSBxgbsdKDcp7Civw3B77BgygVsvx4k3fYr8XCDKChm0uYKScrpFr9_yS6g5mVTQws3KZncZXCQHdupRFoqMS8vXAVgJr52C83AinYWABwH2RYq_B0ZPf_GDzaMgzpep9RlDNecGs57_4zlyxmP2ESU8kjfX8jAA6rYFKeGXJHMD-j4SassoYIzYRv9YkHx8F8Y2ae5Kd5M24Ql0kkvqc_4eO_T9s4nbQ4q5qGHGE-91ND1KVn2avcUyVVPc0-XCR7EH8HnHgCl0v1c7gX1RL7ET7NJbPzfmzQAzk0ZW0dEHI4KZnXSpqy8m-3zAc8kIARm2QwoNEWpy3MWiooPeZVSa9d5iw1aLrbyumfjBP0vCQEPes-Aa6PrARwd5jR9SacO5By0-4emzskvJYRZqbfJ9tXSXDMcAFOAm6kqRPJaj8AO4CyajTC_Lt32_0OLeXqYgNpt3HDqLqGjrb-8fVeQc-hKh0aES8XehQqXj4jMwfsTyj5alsXZm08LwzcFlfQZ7s1kUtmr0_BBNJYcdZUdlu6Qio3LFSRYXNuu6edAO1VH5GKqZISvE1uvDZb2E0Z-rtH-oPp1iSpfvsX47jKJ42LVpI6OahEBri44dzHOIwwm3CIuV8gFzOwR0k"
  ]
}

And the decoded JWT payload has the following form:

{
  "files": [
	{
      "name": ".manifest",
      "hash": "18745de72c01e80cd9f520f418c009ac4d2c3d02b17a50e2d042158bc352a32d",
      "algorithm": "SHA-256"
	},
	{
      "name": "policy.rego",
      "hash": "d0f242aae34db54ef566bea4d45fcf19700c5d8f87a9db932dfad6d1f0f291ac",
      "algorithm": "SHA-256"
	},
	{
      "name": "bar/data.json",
      "hash": "93a23971a914e5eacbf0a8d25154cda309c3c1c72fbb9914d47c60f3cb681588",
      "algorithm": "SHA-256"
	}
  ]
}

The “files” field is generated from the files under the directory path(s) provided to the ‘sign’ command. During bundle signature verification, OPA will check each file name (ex. “foo/bar/data.json”) in the “files” field exists in the actual bundle. The file content is hashed using SHA256.

To include additional claims in the payload use the –claims-file flag to provide a JSON file containing optional claims.

For more information on the format of the “.signatures.json” file see https://www.openpolicyagent.org/docs/latest/management-bundles/#signature-format.

opa sign <path> [<path> [...]] [flags]

Options

  -b, --bundle                    load paths as bundle files or root directories
      --claims-file string        set path of JSON file containing optional claims (see: https://www.openpolicyagent.org/docs/latest/management-bundles/#signature-format)
  -h, --help                      help for sign
  -o, --output-file-path string   set the location for the .signatures.json file (default ".")
      --signing-alg string        name of the signing algorithm (default "RS256")
      --signing-key string        set the secret (HMAC) or path of the PEM file containing the private key (RSA and ECDSA)
      --signing-plugin string     name of the plugin to use for signing/verification (see https://www.openpolicyagent.org/docs/latest/management-bundles/#signature-plugin

opa test

Execute Rego test cases

Synopsis

Execute Rego test cases.

The ‘test’ command takes a file or directory path as input and executes all test cases discovered in matching files. Test cases are rules whose names have the prefix “test_”.

If the ‘–bundle’ option is specified the paths will be treated as policy bundles and loaded following standard bundle conventions. The path can be a compressed archive file or a directory which will be treated as a bundle. Without the ‘–bundle’ flag OPA will recursively load ALL *.rego, *.json, and *.yaml files for evaluating the test cases.

Test cases under development may be prefixed “todo_” in order to skip their execution, while still getting marked as skipped in the test results.

Example policy (example/authz.rego):

package authz

allow {
	input.path = ["users"]
	input.method = "POST"
}

allow {
	input.path = ["users", profile_id]
	input.method = "GET"
	profile_id = input.user_id
}

Example test (example/authz_test.rego):

package authz

test_post_allowed {
	allow with input as {"path": ["users"], "method": "POST"}
}

test_get_denied {
	not allow with input as {"path": ["users"], "method": "GET"}
}

test_get_user_allowed {
	allow with input as {"path": ["users", "bob"], "method": "GET", "user_id": "bob"}
}

test_get_another_user_denied {
	not allow with input as {"path": ["users", "bob"], "method": "GET", "user_id": "alice"}
}

todo_test_user_allowed_http_client_data {
	false # Remember to test this later!
}

Example test run:

$ opa test ./example/

If used with the ‘–bench’ option then tests will be benchmarked.

Example benchmark run:

$ opa test --bench ./example/

The optional “gobench” output format conforms to the Go Benchmark Data Format.

opa test <path> [path [...]] [flags]

Options

      --bench                          benchmark the unit tests
      --benchmem                       report memory allocations with benchmark results (default true)
  -b, --bundle                         load paths as bundle files or root directories
      --count int                      number of times to repeat each test (default 1)
  -c, --coverage                       report coverage (overrides debug tracing)
  -z, --exit-zero-on-skipped           skipped tests return status 0
      --explain {fails,full,notes}     enable query explanations (default fails)
  -f, --format {pretty,json,gobench}   set output format (default pretty)
  -h, --help                           help for test
      --ignore strings                 set file and directory names to ignore during loading (e.g., '.*' excludes hidden files)
  -m, --max-errors int                 set the number of errors to allow before compilation fails early (default 10)
  -r, --run string                     run only test cases matching the regular expression.
  -t, --target {rego,wasm}             set the runtime to exercise (default rego)
      --threshold float                set coverage threshold and exit with non-zero status if coverage is less than threshold %
      --timeout duration               set test timeout (default 5s, 30s when benchmarking)
  -v, --verbose                        set verbose reporting mode

opa version

Print the version of OPA

Synopsis

Show version and build information for OPA.

opa version [flags]

Options

  -c, --check   check for latest OPA release
  -h, --help    help for version