mirror of
https://github.com/opencontainers/runc.git
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3a33b6a3df
This makes the state.json file 1303 bytes or almost 25% smaller (when using the default spec, YMMV) by omitting default values. Before: 5496 bytes After: 4193 bytes (With cgroups#9 applied, the new size is 3424, which is almost 40% savings, compared to the original). Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
67 lines
2.0 KiB
Go
67 lines
2.0 KiB
Go
package configs
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import "golang.org/x/sys/unix"
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type MountIDMapping struct {
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// Recursive indicates if the mapping needs to be recursive.
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Recursive bool `json:"recursive,omitempty"`
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// UserNSPath is a path to a user namespace that indicates the necessary
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// id-mappings for MOUNT_ATTR_IDMAP. If set to non-"", UIDMappings and
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// GIDMappings must be set to nil.
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UserNSPath string `json:"userns_path,omitempty"`
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// UIDMappings is the uid mapping set for this mount, to be used with
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// MOUNT_ATTR_IDMAP.
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UIDMappings []IDMap `json:"uid_mappings,omitempty"`
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// GIDMappings is the gid mapping set for this mount, to be used with
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// MOUNT_ATTR_IDMAP.
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GIDMappings []IDMap `json:"gid_mappings,omitempty"`
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}
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type Mount struct {
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// Source path for the mount.
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Source string `json:"source"`
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// Destination path for the mount inside the container.
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Destination string `json:"destination"`
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// Device the mount is for.
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Device string `json:"device"`
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// Mount flags.
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Flags int `json:"flags,omitempty"`
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// Mount flags that were explicitly cleared in the configuration (meaning
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// the user explicitly requested that these flags *not* be set).
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ClearedFlags int `json:"cleared_flags,omitempty"`
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// Propagation flags.
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PropagationFlags []int `json:"propagation_flags,omitempty"`
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// Mount data applied to the mount.
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Data string `json:"data,omitempty"`
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// Relabel source if set, "z" indicates shared, "Z" indicates unshared.
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Relabel string `json:"relabel,omitempty"`
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// RecAttr represents mount properties to be applied recursively (AT_RECURSIVE), see mount_setattr(2).
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RecAttr *unix.MountAttr `json:"rec_attr,omitempty"`
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// Extensions are additional flags that are specific to runc.
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Extensions int `json:"extensions,omitempty"`
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// Mapping is the MOUNT_ATTR_IDMAP configuration for the mount. If non-nil,
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// the mount is configured to use MOUNT_ATTR_IDMAP-style id mappings.
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IDMapping *MountIDMapping `json:"id_mapping,omitempty"`
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}
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func (m *Mount) IsBind() bool {
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return m.Flags&unix.MS_BIND != 0
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}
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func (m *Mount) IsIDMapped() bool {
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return m.IDMapping != nil
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}
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