mirror of
https://github.com/anchore/syft.git
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368 lines
14 KiB
Markdown
368 lines
14 KiB
Markdown
<p align="center">
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<img src="https://user-images.githubusercontent.com/5199289/136844524-1527b09f-c5cb-4aa9-be54-5aa92a6086c1.png" width="271" alt="Cute pink owl syft logo">
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</p>
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[](https://github.com/anchore/syft/actions/workflows/validations.yaml)
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[](https://goreportcard.com/report/github.com/anchore/syft)
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[](https://github.com/anchore/syft/releases/latest)
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[](https://github.com/anchore/syft)
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[](https://github.com/anchore/syft/blob/main/LICENSE)
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[](https://anchore.com/slack)
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A CLI tool and Go library for generating a Software Bill of Materials (SBOM) from container images and filesystems. Exceptional for vulnerability detection when used with a scanner tool like [Grype](https://github.com/anchore/grype).
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### Join our community meetings!
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- Calendar: https://calendar.google.com/calendar/u/0/r?cid=Y182OTM4dGt0MjRtajI0NnNzOThiaGtnM29qNEBncm91cC5jYWxlbmRhci5nb29nbGUuY29t
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- Agenda: https://docs.google.com/document/d/1ZtSAa6fj2a6KRWviTn3WoJm09edvrNUp4Iz_dOjjyY8/edit?usp=sharing (join [this group](https://groups.google.com/g/anchore-oss-community) for write access)
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- All are welcome!
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## Features
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- Catalog container images and filesystems to discover packages and libraries.
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- Supports packages and libraries from various ecosystems (APK, DEB, RPM, Ruby Bundles, Python Wheel/Egg/requirements.txt, JavaScript NPM/Yarn, Java JAR/EAR/WAR, Jenkins plugins JPI/HPI, Go modules)
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- Linux distribution identification (supports Alpine, BusyBox, CentOS/RedHat, Debian/Ubuntu flavored distributions)
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- Supports Docker and OCI image formats
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- Direct support for [Grype](https://github.com/anchore/grype), a fast and powerful vulnerability matcher.
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If you encounter an issue, please [let us know using the issue tracker](https://github.com/anchore/syft/issues).
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## Installation
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### Recommended
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```bash
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curl -sSfL https://raw.githubusercontent.com/anchore/syft/main/install.sh | sh -s -- -b /usr/local/bin
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```
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...or, you can specify a release version and destination directory for the installation:
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```
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curl -sSfL https://raw.githubusercontent.com/anchore/syft/main/install.sh | sh -s -- -b <DESTINATION_DIR> <RELEASE_VERSION>
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```
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### Homebrew
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```bash
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brew tap anchore/syft
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brew install syft
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```
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**Note**: Currently, Syft is built only for macOS and Linux.
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## Getting started
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To generate an SBOM for a Docker or OCI image:
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```
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syft <image>
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```
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**Note**: This is equivalent to specifying the `packages` subcommand:
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```
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syft packages <image>
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```
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The above output includes only software that is visible in the container (i.e., the squashed representation of the image).
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To include software from all image layers in the SBOM, regardless of its presence in the final image, provide `--scope all-layers`:
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```
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syft packages <image> --scope all-layers
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```
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### Supported sources
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Syft can generate a SBOM from a variety of sources:
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```
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# catalog a container image archive (from the result of `docker image save ...`, `podman save ...`, or `skopeo copy` commands)
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syft packages path/to/image.tar
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# catalog a directory
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syft packages path/to/dir
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```
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Sources can be explicitly provided with a scheme:
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```
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docker:yourrepo/yourimage:tag use images from the Docker daemon
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docker-archive:path/to/yourimage.tar use a tarball from disk for archives created from "docker save"
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oci-archive:path/to/yourimage.tar use a tarball from disk for OCI archives (from Skopeo or otherwise)
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oci-dir:path/to/yourimage read directly from a path on disk for OCI layout directories (from Skopeo or otherwise)
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dir:path/to/yourproject read directly from a path on disk (any directory)
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file:path/to/yourproject/file read directly from a path on disk (any single file)
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registry:yourrepo/yourimage:tag pull image directly from a registry (no container runtime required)
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```
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### Output formats
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The output format for Syft is configurable as well:
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```
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syft packages <image> -o <format>
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```
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Where the `formats` available are:
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- `json`: Use this to get as much information out of Syft as possible!
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- `text`: A row-oriented, human-and-machine-friendly output.
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- `cyclonedx`: A XML report conforming to the [CycloneDX 1.3 specification](https://cyclonedx.org/specification/overview/).
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- `cyclonedx-json`: A JSON report conforming to the [CycloneDX 1.3 specification](https://cyclonedx.org/specification/overview/).
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- `spdx`: A tag-value formatted report conforming to the [SPDX 2.2 specification](https://spdx.github.io/spdx-spec/).
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- `spdx-json`: A JSON report conforming to the [SPDX 2.2 JSON Schema](https://github.com/spdx/spdx-spec/blob/v2.2/schemas/spdx-schema.json).
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- `table`: A columnar summary (default).
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## Private Registry Authentication
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### Local Docker Credentials
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When a container runtime is not present, Syft can still utilize credentials configured in common credential sources (such as `~/.docker/config.json`).
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It will pull images from private registries using these credentials. The config file is where your credentials are stored when authenticating with private registries via some command like `docker login`.
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For more information see the `go-containerregistry` [documentation](https://github.com/google/go-containerregistry/tree/main/pkg/authn).
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An example `config.json` looks something like this:
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```
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// config.json
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{
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"auths": {
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"registry.example.com": {
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"username": "AzureDiamond",
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"password": "hunter2"
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}
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}
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}
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```
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You can run the following command as an example. It details the mount/environment configuration a container needs to access a private registry:
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`docker run -v ./config.json:/config/config.json -e "DOCKER_CONFIG=/config" anchore/syft:latest <private_image>`
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### Docker Credentials in Kubernetes
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The below section shows a simple workflow on how to mount this config file as a secret into a container on kubernetes.
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1. Create a secret. The value of `config.json` is important. It refers to the specification detailed [here](https://github.com/google/go-containerregistry/tree/main/pkg/authn#the-config-file).
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Below this section is the `secret.yaml` file that the pod configuration will consume as a volume.
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The key `config.json` is important. It will end up being the name of the file when mounted into the pod.
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```
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# secret.yaml
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apiVersion: v1
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kind: Secret
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metadata:
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name: registry-config
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namespace: syft
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data:
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config.json: <base64 encoded config.json>
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```
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`kubectl apply -f secret.yaml`
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2. Create your pod running syft. The env `DOCKER_CONFIG` is important because it advertises where to look for the credential file.
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In the below example, setting `DOCKER_CONFIG=/config` informs syft that credentials can be found at `/config/config.json`.
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This is why we used `config.json` as the key for our secret. When mounted into containers the secrets' key is used as the filename.
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The `volumeMounts` section mounts our secret to `/config`. The `volumes` section names our volume and leverages the secret we created in step one.
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```
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# pod.yaml
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apiVersion: v1
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kind: Pod
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spec:
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containers:
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- image: anchore/syft:latest
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name: syft-private-registry-demo
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env:
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- name: DOCKER_CONFIG
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value: /config
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volumeMounts:
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- mountPath: /config
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name: registry-config
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readOnly: true
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args:
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- <private_image>
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volumes:
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- name: registry-config
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secret:
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secretName: registry-config
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```
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`kubectl apply -f pod.yaml`
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3. The user can now run `kubectl logs syft-private-registry-demo`. The logs should show the syft analysis for the `<private_image>` provided in the pod configuration.
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Using the above information, users should be able to configure private registry access without having to do so in the `grype` or `syft` configuration files.
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They will also not be dependent on a docker daemon, (or some other runtime software) for registry configuration and access.
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## Configuration
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Configuration search paths:
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- `.syft.yaml`
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- `.syft/config.yaml`
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- `~/.syft.yaml`
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- `<XDG_CONFIG_HOME>/syft/config.yaml`
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Configuration options (example values are the default):
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```yaml
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# the output format of the SBOM report (options: table, text, json)
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# same as -o ; SYFT_OUTPUT env var
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output: "table"
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# suppress all output (except for the SBOM report)
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# same as -q ; SYFT_QUIET env var
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quiet: false
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# same as --file; write output report to a file (default is to write to stdout)
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file: ""
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# enable/disable checking for application updates on startup
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# same as SYFT_CHECK_FOR_APP_UPDATE env var
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check-for-app-update: true
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# cataloging packages is exposed through the packages and power-user subcommands
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package:
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cataloger:
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# enable/disable cataloging of packages
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# SYFT_PACKAGE_CATALOGER_ENABLED env var
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enabled: true
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# the search space to look for packages (options: all-layers, squashed)
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# same as -s ; SYFT_PACKAGE_CATALOGER_SCOPE env var
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scope: "squashed"
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# cataloging file classifications is exposed through the power-user subcommand
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file-classification:
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cataloger:
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# enable/disable cataloging of file classifications
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# SYFT_FILE_CLASSIFICATION_CATALOGER_ENABLED env var
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enabled: true
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# the search space to look for file classifications (options: all-layers, squashed)
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# SYFT_FILE_CLASSIFICATION_CATALOGER_SCOPE env var
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scope: "squashed"
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# cataloging file contents is exposed through the power-user subcommand
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file-contents:
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cataloger:
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# enable/disable cataloging of secrets
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# SYFT_FILE_CONTENTS_CATALOGER_ENABLED env var
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enabled: true
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# the search space to look for secrets (options: all-layers, squashed)
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# SYFT_FILE_CONTENTS_CATALOGER_SCOPE env var
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scope: "squashed"
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# skip searching a file entirely if it is above the given size (default = 1MB; unit = bytes)
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# SYFT_FILE_CONTENTS_SKIP_FILES_ABOVE_SIZE env var
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skip-files-above-size: 1048576
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# file globs for the cataloger to match on
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# SYFT_FILE_CONTENTS_GLOBS env var
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globs: []
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# cataloging file metadata is exposed through the power-user subcommand
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file-metadata:
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cataloger:
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# enable/disable cataloging of file metadata
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# SYFT_FILE_METADATA_CATALOGER_ENABLED env var
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enabled: true
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# the search space to look for file metadata (options: all-layers, squashed)
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# SYFT_FILE_METADATA_CATALOGER_SCOPE env var
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scope: "squashed"
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# the file digest algorithms to use when cataloging files (options: "sha256", "md5", "sha1")
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# SYFT_FILE_METADATA_DIGESTS env var
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digests: ["sha256"]
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# cataloging secrets is exposed through the power-user subcommand
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secrets:
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cataloger:
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# enable/disable cataloging of secrets
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# SYFT_SECRETS_CATALOGER_ENABLED env var
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enabled: true
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# the search space to look for secrets (options: all-layers, squashed)
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# SYFT_SECRETS_CATALOGER_SCOPE env var
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scope: "all-layers"
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# show extracted secret values in the final JSON report
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# SYFT_SECRETS_REVEAL_VALUES env var
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reveal-values: false
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# skip searching a file entirely if it is above the given size (default = 1MB; unit = bytes)
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# SYFT_SECRETS_SKIP_FILES_ABOVE_SIZE env var
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skip-files-above-size: 1048576
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# name-regex pairs to consider when searching files for secrets. Note: the regex must match single line patterns
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# but may also have OPTIONAL multiline capture groups. Regexes with a named capture group of "value" will
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# use the entire regex to match, but the secret value will be assumed to be entirely contained within the
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# "value" named capture group.
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additional-patterns: {}
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# names to exclude from the secrets search, valid values are: "aws-access-key", "aws-secret-key", "pem-private-key",
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# "docker-config-auth", and "generic-api-key". Note: this does not consider any names introduced in the
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# "secrets.additional-patterns" config option.
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# SYFT_SECRETS_EXCLUDE_PATTERN_NAMES env var
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exclude-pattern-names: []
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# options when pulling directly from a registry via the "registry:" scheme
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registry:
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# skip TLS verification when communicating with the registry
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# SYFT_REGISTRY_INSECURE_SKIP_TLS_VERIFY env var
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insecure-skip-tls-verify: false
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# use http instead of https when connecting to the registry
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# SYFT_REGISTRY_INSECURE_USE_HTTP env var
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insecure-use-http: false
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# credentials for specific registries
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auth:
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- # the URL to the registry (e.g. "docker.io", "localhost:5000", etc.)
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# SYFT_REGISTRY_AUTH_AUTHORITY env var
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authority: ""
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# SYFT_REGISTRY_AUTH_USERNAME env var
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username: ""
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# SYFT_REGISTRY_AUTH_PASSWORD env var
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password: ""
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# note: token and username/password are mutually exclusive
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# SYFT_REGISTRY_AUTH_TOKEN env var
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token: ""
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- ... # note, more credentials can be provided via config file only
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log:
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# use structured logging
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# same as SYFT_LOG_STRUCTURED env var
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structured: false
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# the log level; note: detailed logging suppress the ETUI
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# same as SYFT_LOG_LEVEL env var
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level: "error"
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# location to write the log file (default is not to have a log file)
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# same as SYFT_LOG_FILE env var
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file: ""
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# uploading package SBOM is exposed through the packages subcommand
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anchore:
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# (feature-preview) the Anchore Enterprise Host or URL to upload results to (supported on Enterprise 3.0+)
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# same as -H ; SYFT_ANCHORE_HOST env var
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host: ""
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# (feature-preview) the path after the host to the Anchore External API (supported on Enterprise 3.0+)
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# same as SYFT_ANCHORE_PATH env var
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path: ""
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# (feature-preview) the username to authenticate against Anchore Enterprise (supported on Enterprise 3.0+)
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# same as -u ; SYFT_ANCHORE_USERNAME env var
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username: ""
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# (feature-preview) the password to authenticate against Anchore Enterprise (supported on Enterprise 3.0+)
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# same as -p ; SYFT_ANCHORE_PASSWORD env var
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password: ""
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# (feature-preview) path to dockerfile to be uploaded with the syft results to Anchore Enterprise (supported on Enterprise 3.0+)
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# same as -d ; SYFT_ANCHORE_DOCKERFILE env var
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dockerfile: ""
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```
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