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Sep 15, 2016
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config: Fix "Serialization" -> "Configuration" in the title #315

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123 changes: 61 additions & 62 deletions config.md
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
# OCI Image Serialization
# Image Configuration

An *Image* is an ordered collection of root filesystem changes and the corresponding execution parameters for use within a container runtime.
This specification outlines the JSON format describing images for use with a container runtime and execution tool and its relationship to filesystem changesets, described in [Layers](layer.md).
Expand Down Expand Up @@ -56,67 +56,7 @@ This specification uses the following terms:
</dd>
</dl>

## Image Configuration

Here is an example image configuration JSON document:

```json,title=Image%20JSON&mediatype=application/vnd.oci.image.config.v1%2Bjson
{
"created": "2015-10-31T22:22:56.015925234Z",
"author": "Alyssa P. Hacker <[email protected]>",
"architecture": "amd64",
"os": "linux",
"config": {
"User": "alice",
"Memory": 2048,
"MemorySwap": 4096,
"CpuShares": 8,
"ExposedPorts": {
"8080/tcp": {}
},
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"FOO=oci_is_a",
"BAR=well_written_spec"
],
"Entrypoint": [
"/bin/my-app-binary"
],
"Cmd": [
"--foreground",
"--config",
"/etc/my-app.d/default.cfg"
],
"Volumes": {
"/var/job-result-data": {},
"/var/log/my-app-logs": {}
},
"WorkingDir": "/home/alice"
},
"rootfs": {
"diff_ids": [
"sha256:c6f988f4874bb0add23a778f753c65efe992244e148a1d2ec2a8b664fb66bbd1",
"sha256:5f70bf18a086007016e948b04aed3b82103a36bea41755b6cddfaf10ace3c6ef"
],
"type": "layers"
},
"history": [
{
"created": "2015-10-31T22:22:54.690851953Z",
"created_by": "/bin/sh -c #(nop) ADD file:a3bc1e842b69636f9df5256c49c5374fb4eef1e281fe3f282c65fb853ee171c5 in /"
},
{
"created": "2015-10-31T22:22:55.613815829Z",
"created_by": "/bin/sh -c #(nop) CMD [\"sh\"]",
"empty_layer": true
}
]
}
```

Note: whitespace has been added to this example for clarity. Whitespace is OPTIONAL and implementations MAY have compact JSON with no whitespace.

### Image JSON Field Descriptions
## Properties

<dl>
<dt>
Expand Down Expand Up @@ -365,3 +305,62 @@ Here is an example history section:
</dl>

Any extra fields in the Image JSON struct are considered implementation specific and should be ignored by any implementations which are unable to interpret them.
Whitespace is OPTIONAL and implementations MAY have compact JSON with no whitespace.

## Example

Here is an example image configuration JSON document:

```json,title=Image%20JSON&mediatype=application/vnd.oci.image.config.v1%2Bjson
{
"created": "2015-10-31T22:22:56.015925234Z",
"author": "Alyssa P. Hacker <[email protected]>",
"architecture": "amd64",
"os": "linux",
"config": {
"User": "alice",
"Memory": 2048,
"MemorySwap": 4096,
"CpuShares": 8,
"ExposedPorts": {
"8080/tcp": {}
},
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"FOO=oci_is_a",
"BAR=well_written_spec"
],
"Entrypoint": [
"/bin/my-app-binary"
],
"Cmd": [
"--foreground",
"--config",
"/etc/my-app.d/default.cfg"
],
"Volumes": {
"/var/job-result-data": {},
"/var/log/my-app-logs": {}
},
"WorkingDir": "/home/alice"
},
"rootfs": {
"diff_ids": [
"sha256:c6f988f4874bb0add23a778f753c65efe992244e148a1d2ec2a8b664fb66bbd1",
"sha256:5f70bf18a086007016e948b04aed3b82103a36bea41755b6cddfaf10ace3c6ef"
],
"type": "layers"
},
"history": [
{
"created": "2015-10-31T22:22:54.690851953Z",
"created_by": "/bin/sh -c #(nop) ADD file:a3bc1e842b69636f9df5256c49c5374fb4eef1e281fe3f282c65fb853ee171c5 in /"
},
{
"created": "2015-10-31T22:22:55.613815829Z",
"created_by": "/bin/sh -c #(nop) CMD [\"sh\"]",
"empty_layer": true
}
]
}
```