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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/podman-image-trust.1.md | 47 |
1 files changed, 28 insertions, 19 deletions
diff --git a/docs/podman-image-trust.1.md b/docs/podman-image-trust.1.md index 3b6564315..668fee0f3 100644 --- a/docs/podman-image-trust.1.md +++ b/docs/podman-image-trust.1.md @@ -9,22 +9,24 @@ podman\-trust - Manage container registry image trust policy [**-h**|**--help**] [**-j**|**--json**] [**--raw**] -[**-f**|**--pubkeysfile** KEY1 [**f**|**--pubkeysfile** KEY2,...]] +[**-f**|**--pubkeysfile** KEY1 [**-f**|**--pubkeysfile** KEY2,...]] [**-t**|**--type** signedBy|accept|reject] REGISTRY[/REPOSITORY] # DESCRIPTION -Manages the trust policy of the host system. Trust policy describes -a registry scope (registry and/or repository) that must be signed by public keys. Trust -is defined in **/etc/containers/policy.json**. Trust is enforced when a user attempts to pull -an image from a registry. +Manages which registries you trust as a source of container images based on its location. The location is determined by the transport and the registry host of the image. Using this container image `docker://docker.io/library/busybox` as an example, `docker` is the transport and `docker.io` is the registry host. -Trust scope is evaluated by most specific to least specific. In other words, policy may -be defined for an entire registry, but refined for a particular repository in that -registry. See below for examples. +The trust policy describes a registry scope (registry and/or repository). This trust can use public keys for signed images. + +Trust is defined in **/etc/containers/policy.json** and is enforced when a user attempts to pull an image from a registry that is managed by policy.json. + +The scope of the trust is evaluated from most specific to the least specific. In other words, a policy may be defined for an entire registry. Or it could be defined for a particular repository in that registry. Or it could be defined down to a specific signed image inside of the registry. See below for examples. + +Trust **type** provides a way to: + +Whitelist ("accept") or +Blacklist ("reject") registries. -Trust **type** provides a way to whitelist ("accept") or blacklist -("reject") registries. Trust may be updated using the command **podman image trust set** for an existing trust scope. @@ -34,10 +36,10 @@ Trust may be updated using the command **podman image trust set** for an existin **-f** **--pubkeysfile** A path to an exported public key on the local system. Key paths - will be referenced in policy.json. Any path may be used but path - **/etc/pki/containers** is recommended. Option may be used multiple times to - require an image be sigend by multiple keys. One of **--pubkeys** or - **--pubkeysfile** is required for **signedBy** type. + will be referenced in policy.json. Any path may be used but the path + **/etc/pki/containers** is recommended. Options may be used multiple times to + require an image be signed by multiple keys. One of **--pubkeys** or + **--pubkeysfile** is required for the **signedBy** type. **-t** **--type** The trust type for this policy entry. Accepted values: @@ -59,23 +61,30 @@ Trust may be updated using the command **podman image trust set** for an existin Accept all unsigned images from a registry - podman image trust set --type accept docker.io + sudo podman image trust set --type accept docker.io Modify default trust policy - podman image trust set -t reject default + sudo podman image trust set -t reject default Display system trust policy - podman image trust show + sudo podman image trust show Display trust policy file - podman image trust show --raw + sudo podman image trust show --raw Display trust as JSON - podman image trust show --json + sudo podman image trust show --json + +# SEE ALSO + +policy-json(5) # HISTORY + +January 2019, updated by Tom Sweeney (tsweeney at redhat dot com) + December 2018, originally compiled by Qi Wang (qiwan at redhat dot com) |