How does overlay2 associate container to the folders storing the merged stuff
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I am deep diving into overlay2 FS following Docker documentation.
https://docs.docker.com/storage/storagedriver/overlayfs-driver/#image-and-container-layers-on-disk-1
It just mentions as of Docker 1.10, it is no longer using the image id to identity image layer.
I could find the container id using command "docker inspect --format {{.Id}} ContainerName`". In the doc, it mentions we can see the container folder in the directory /var/lib/docker/overlay2 and the image folder within the file "lower-id" of the container folder. However, I could not see the corresponding directory within /var/lib/docker/overlay2. Instead, there is one in the /var/lib/docker/containers/Container-ID. Currently, I got stuck finding the lower layer(Image) of the container.
The command "find . -name " any filename within the Container" could be used to locate the folder within /var/lib/docker/overlay2, but it is not a good way to see it.
Please help figure out a way to locate it. Thanks.
image docker
asked Nov 24 '18 at 7:18
Jepsenwan Jepsenwan
184
add a comment |
I am deep diving into overlay2 FS following Docker documentation.
https://docs.docker.com/storage/storagedriver/overlayfs-driver/#image-and-container-layers-on-disk-1
It just mentions as of Docker 1.10, it is no longer using the image id to identity image layer.
I could find the container id using command "docker inspect --format {{.Id}} ContainerName`". In the doc, it mentions we can see the container folder in the directory /var/lib/docker/overlay2 and the image folder within the file "lower-id" of the container folder. However, I could not see the corresponding directory within /var/lib/docker/overlay2. Instead, there is one in the /var/lib/docker/containers/Container-ID. Currently, I got stuck finding the lower layer(Image) of the container.
The command "find . -name " any filename within the Container" could be used to locate the folder within /var/lib/docker/overlay2, but it is not a good way to see it.
Please help figure out a way to locate it. Thanks.
image docker
asked Nov 24 '18 at 7:18
Jepsenwan Jepsenwan
184
add a comment |
I am deep diving into overlay2 FS following Docker documentation.
https://docs.docker.com/storage/storagedriver/overlayfs-driver/#image-and-container-layers-on-disk-1
It just mentions as of Docker 1.10, it is no longer using the image id to identity image layer.
I could find the container id using command "docker inspect --format {{.Id}} ContainerName`". In the doc, it mentions we can see the container folder in the directory /var/lib/docker/overlay2 and the image folder within the file "lower-id" of the container folder. However, I could not see the corresponding directory within /var/lib/docker/overlay2. Instead, there is one in the /var/lib/docker/containers/Container-ID. Currently, I got stuck finding the lower layer(Image) of the container.
The command "find . -name " any filename within the Container" could be used to locate the folder within /var/lib/docker/overlay2, but it is not a good way to see it.
Please help figure out a way to locate it. Thanks.
image docker
asked Nov 24 '18 at 7:18
Jepsenwan Jepsenwan
184
I am deep diving into overlay2 FS following Docker documentation.
https://docs.docker.com/storage/storagedriver/overlayfs-driver/#image-and-container-layers-on-disk-1
It just mentions as of Docker 1.10, it is no longer using the image id to identity image layer.
I could find the container id using command "docker inspect --format {{.Id}} ContainerName`". In the doc, it mentions we can see the container folder in the directory /var/lib/docker/overlay2 and the image folder within the file "lower-id" of the container folder. However, I could not see the corresponding directory within /var/lib/docker/overlay2. Instead, there is one in the /var/lib/docker/containers/Container-ID. Currently, I got stuck finding the lower layer(Image) of the container.
The command "find . -name " any filename within the Container" could be used to locate the folder within /var/lib/docker/overlay2, but it is not a good way to see it.
Please help figure out a way to locate it. Thanks.
image docker
image docker
asked Nov 24 '18 at 7:18
Jepsenwan Jepsenwan
184
asked Nov 24 '18 at 7:18
Jepsenwan Jepsenwan
184
asked Nov 24 '18 at 7:18
Jepsenwan Jepsenwan
184
asked Nov 24 '18 at 7:18
Jepsenwan Jepsenwan
184
asked Nov 24 '18 at 7:18
Jepsenwan Jepsenwan
184
184
add a comment |
add a comment |
1 Answer
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Just figured out, you can use docker image inspect ImageName to check the layers. Thanks.
answered Nov 24 '18 at 7:39
Jepsenwan Jepsenwan
184
add a comment |
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1 Answer
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active
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Just figured out, you can use docker image inspect ImageName to check the layers. Thanks.
answered Nov 24 '18 at 7:39
Jepsenwan Jepsenwan
184
add a comment |
Just figured out, you can use docker image inspect ImageName to check the layers. Thanks.
answered Nov 24 '18 at 7:39
Jepsenwan Jepsenwan
184
add a comment |
Just figured out, you can use docker image inspect ImageName to check the layers. Thanks.
answered Nov 24 '18 at 7:39
Jepsenwan Jepsenwan
184
Just figured out, you can use docker image inspect ImageName to check the layers. Thanks.
answered Nov 24 '18 at 7:39
Jepsenwan Jepsenwan
184
answered Nov 24 '18 at 7:39
Jepsenwan Jepsenwan
184
answered Nov 24 '18 at 7:39
Jepsenwan Jepsenwan
184
answered Nov 24 '18 at 7:39
Jepsenwan Jepsenwan
184
184
add a comment |
add a comment |
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