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always add short container id as net alias #11751

Merged
merged 3 commits into from
Sep 28, 2021
Merged

always add short container id as net alias #11751

merged 3 commits into from
Sep 28, 2021

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Luap99
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@Luap99 Luap99 commented Sep 27, 2021

This matches what docker does. Also make sure the net aliases are also
shown when the container is stopped.

docker-compose uses this special alias entry to check if it is already
correctly connected to the network. [1]
Because we do not support static ips on network connect at the moment
calling disconnect && connect will loose the static ip.

Fixes #11748

[1] https://github.com/docker/compose/blob/0bea52b18dda3de8c28fcfb0c80cc08b8950645e/compose/service.py#L663-L667

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openshift-ci bot commented Sep 27, 2021

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Luap99

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@openshift-ci openshift-ci bot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Sep 27, 2021
@Luap99
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Luap99 commented Sep 27, 2021

@baude @mheon PTAL

This was referenced Sep 27, 2021
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vrothberg
vrothberg reviewed Sep 27, 2021
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LGTM
@mheon PTAL

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Luap99 commented Sep 27, 2021

I reworked the logic. Instead of adding the ID to the DB I will just append it to the aliases when they are queried . This is better because we do not have to create the buckets if they are no extra aliases. I also moved network aliases validation to container create instead of the network backend. Otherwise we could make old containers with aliases non functional.

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@Luap99 all kinds of test unhappiness @Luap99

@Luap99 Luap99 force-pushed the net-alias branch 2 times, most recently from afc6e0d to 98eb456 Compare September 27, 2021 16:34
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rhatdan commented Sep 27, 2021

/lgtm
/hold

@openshift-ci openshift-ci bot added the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Sep 27, 2021
@openshift-ci openshift-ci bot added the lgtm Indicates that a PR is ready to be merged. label Sep 27, 2021
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Luap99 commented Sep 28, 2021

@edsantiago PTAL at the system test error

# #/vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
# #|     FAIL: short container id in network aliases
# #| expected: '[19e84a88e6f0]'
# #|   actual: '[19e84a88e6f0]'
# #\^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

I don't understand what's wrong with that?

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The brackets. The way the is function is coded, it accepts character classes and patterns, so [xyz] means 'x, y, or z`. Can you get rid of the brackets in the output?

edsantiago
edsantiago reviewed Sep 28, 2021
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test/system/500-networking.bats Outdated
@@ -415,6 +415,10 @@ load helpers
run_podman inspect $cid --format "{{(index .NetworkSettings.Networks \"$netname\").MacAddress}}"
mac="$output"

# check network alias for container short id
run_podman inspect $cid --format "{{(index .NetworkSettings.Networks \"$netname\").Aliases}}"
is "$output" "[${cid:0:12}]" "short container id in network aliases"
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Alternatively, try \\[...\\] (double backslashes). Or maybe single backslashes, or maybe triple.

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A single backslash worked

@Luap99
always add short container id as net alias
05614ee 
This matches what docker does. Also make sure the net aliases are also
shown when the container is stopped.

docker-compose uses this special alias entry to check if it is already
correctly connected to the network. [1]
Because we do not support static ips on network connect at the moment
calling disconnect && connect will loose the static ip.

Fixes containers#11748

[1] https://github.com/docker/compose/blob/0bea52b18dda3de8c28fcfb0c80cc08b8950645e/compose/service.py#L663-L667

Signed-off-by: Paul Holzinger <[email protected]>
@Luap99
set --cni-config-dir for exit command
d0950f3 
Signed-off-by: Paul Holzinger <[email protected]>
@Luap99
move network alias validation to container create
1c89262 
Podman 4.0 currently errors when you use network aliases for a network which
has dns disabled. Because the error happens on network setup this can
cause regression for old working containers. The network backend should not
validate this. Instead podman should check this at container create time
and also for network connect.

Signed-off-by: Paul Holzinger <[email protected]>
@openshift-ci openshift-ci bot removed the lgtm Indicates that a PR is ready to be merged. label Sep 28, 2021
@Luap99
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Luap99 commented Sep 28, 2021

@edsantiago Can I recommend changing the error output from is. Something like expected (regex)

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That whole function needs serious cleanup, and one of the first priorities is to actually try a simple = before expr. I think I'll tackle that right now.

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mheon commented Sep 28, 2021

LGTM.

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rhatdan commented Sep 28, 2021

/lgtm

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rhatdan commented Sep 28, 2021

/hold cancel
Lets cleanup the tests in other PR.

@openshift-ci openshift-ci bot removed the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Sep 28, 2021
@openshift-merge-robot openshift-merge-robot merged commit 2d22d17 into containers:main Sep 28, 2021
@Luap99 Luap99 deleted the net-alias branch September 28, 2021 14:05
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Container wont use static ip if start with docker-compose up without detached
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@Luap99 @TomSweeneyRedHat @rhatdan @edsantiago @mheon @vrothberg @openshift-merge-robot