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Add support for dir transport to kpod save

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kpod save can now save images to directories using the
dir transport. Manifest conversion is also possible.
To save with the oci manifest type set --format to oci-dir
and to save with the v2s2(docker) manifest type, set --format
to docker-dir.
The layers can be compressed as well when saving to a directory
using the --compress flag.
Added functionality to kpod load to be able to load image from
a directory

Signed-off-by: umohnani8 <umohnani@redhat.com>

Closes: #137
Approved by: rhatdan
This commit is contained in:
umohnani8
2017-12-14 12:49:22 -05:00
committed by Atomic Bot
parent 1e7d880b56
commit d2ab53aa5f
6 changed files with 119 additions and 20 deletions
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47
docs/kpod-save.1.md
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@ -14,10 +14,10 @@ kpod-save - Save an image to docker-archive or oci-archive
[**--help**|**-h**]
## DESCRIPTION
**kpod save** saves an image to either **docker-archive** or **oci-archive**
on the local machine, default is **docker-archive**.
**kpod save** writes to STDOUT by default and can be redirected to a file using the **output** flag.
The **quiet** flag suppresses the output when set.
**kpod save** saves an image to either **docker-archive**, **oci-archive**, **oci-dir** (directory
with oci manifest type), or **docker-dir** (directory with v2s2 manifest type) on the local machine,
default is **docker-archive**. **kpod save** writes to STDOUT by default and can be redirected to a
file using the **output** flag. The **quiet** flag suppresses the output when set.
**kpod [GLOBAL OPTIONS]**
@ -27,13 +27,20 @@ The **quiet** flag suppresses the output when set.
## OPTIONS
**--compress**
Compress tarball image layers when pushing to a directory using the 'dir' transport. (default is same compression type, compressed or uncompressed, as source)
Note: This flag can only be set when using the **dir** transport i.e --format=oci-dir or --format-docker-dir
**--output, -o**
Write to a file, default is STDOUT
**--format**
Save image to **oci-archive**
Save image to **oci-archive**, **oci-dir** (directory with oci manifest type), or **docker-dir** (directory with v2s2 manifest type)
```
--format oci-archive
--format oci-dir
--format docker-dir
```
**--quiet, -q**
@ -53,6 +60,36 @@ Suppress the output
# kpod save -o oci-alpine.tar --format oci-archive alpine
```
```
# kpod save --compress --format oci-dir -o alp-dir alpine
Getting image source signatures
Copying blob sha256:2fdfe1cd78c20d05774f0919be19bc1a3e4729bce219968e4188e7e0f1af679d
1.97 MB / 1.97 MB [========================================================] 0s
Copying config sha256:501d1a8f0487e93128df34ea349795bc324d5e0c0d5112e08386a9dfaff620be
584 B / 584 B [============================================================] 0s
Writing manifest to image destination
Storing signatures
```
```
# kpod save --format docker-dir -o ubuntu-dir ubuntu
Getting image source signatures
Copying blob sha256:660c48dd555dcbfdfe19c80a30f557ac57a15f595250e67bfad1e5663c1725bb
45.55 MB / 45.55 MB [======================================================] 8s
Copying blob sha256:4c7380416e7816a5ab1f840482c9c3ca8de58c6f3ee7f95e55ad299abbfe599f
846 B / 846 B [============================================================] 0s
Copying blob sha256:421e436b5f80d876128b74139531693be9b4e59e4f1081c9a3c379c95094e375
620 B / 620 B [============================================================] 0s
Copying blob sha256:e4ce6c3651b3a090bb43688f512f687ea6e3e533132bcbc4a83fb97e7046cea3
849 B / 849 B [============================================================] 0s
Copying blob sha256:be588e74bd348ce48bb7161350f4b9d783c331f37a853a80b0b4abc0a33c569e
169 B / 169 B [============================================================] 0s
Copying config sha256:20c44cd7596ff4807aef84273c99588d22749e2a7e15a7545ac96347baa65eda
3.53 KB / 3.53 KB [========================================================] 0s
Writing manifest to image destination
Storing signatures
```
## SEE ALSO
kpod(1), kpod-load(1), crio(8), crio.conf(5)