Albert Esteve 3ef97fbaa9 container: serve image with nbd ...

Include qemu-nbd in the container to make it
easier for users to use the containerized imageio
server.

The container now runs with a script as an
ENTRYPOINT. The script runs as a program that
can receive additional command line parameters.
The script is basically a launcher for the two
main services involved:
- qemu-nbd serving the image
- ovirt-imageio exposing the image through http

This commit removes support for file ticket, only
nbd tickets are implicitely used. This is better,
as nbd does much of the hard work for us, so will
perform better.

Users will not have to worry about
the ticket anyway, the ticket is also generated
automatically, so no need to mount the ticket
inside the container, or give an environment
variable. Users can set the ticket ID in the
command line, or use the file name as default.

Example session:

$ mkdir /var/tmp/images
$ qemu-img create -f raw /var/tmp/images/disk.raw 6g

$ podman run \
        --interactive \
        --tty \
        --rm \
        --publish 8080:80 \
        --volume /var/tmp/images:/var/tmp:Z \
        localhost/ovirt-imageio:latest /var/tmp/disk.raw
2022-10-20 14:46:08,953 INFO    (MainThread) [server] Starting (hostname=1594cc8a121b pid=8, version=2.4.7)
2022-10-20 14:46:08,970 INFO    (MainThread) [services] remote.service listening on ('::', 80)
2022-10-20 14:46:08,970 INFO    (MainThread) [server] Initial ticket: /ticket.json
2022-10-20 14:46:08,971 INFO    (MainThread) [server] Ready for requests
...
2022-10-26 12:07:00,155 INFO    (MainThread) [server] Received signal 2, shutting down
Interrupted, shutting down

$ examples/imageio-client download -f raw http://localhost:8080/images/disk.raw download.raw
[ 100%  ] 6.00 GiB, 0.10 s, 57.23 GiB/s

Signed-off-by: Albert Esteve <aesteve@redhat.com>

2022-10-31 21:09:32 +02:00

..

app

container: serve image with nbd

2022-10-31 21:09:32 +02:00

conf.d

reuse: addheader container folder

2022-10-18 13:04:20 +02:00

Containerfile

container: serve image with nbd

2022-10-31 21:09:32 +02:00