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Use CNI cache to find container IP

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This is an optimization that uses the results cache created by
CNI on the filesystem to store and fetch IP addresses for
containers in the core services and for functions. As part of
the change, the dependency on the syscall code from Weave net
has been removed, and the code should compile on MacOS again.

Updates and rebases the work in #38 by carlosedp

Tested in the original PR, further testing in the incoming
PR.

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
This commit is contained in:
Alex Ellis (OpenFaaS Ltd)
2021-02-19 12:12:14 +00:00
parent e99c49d4e5
commit 19a807c336
7 changed files with 57 additions and 196 deletions
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7
pkg/provider/handlers/deploy.go
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@ -199,17 +199,18 @@ func createTask(ctx context.Context, client *containerd.Client, container contai
log.Printf("Container ID: %s\tTask ID %s:\tTask PID: %d\t\n", name, task.ID(), task.Pid())
labels := map[string]string{}
network, err := cninetwork.CreateCNINetwork(ctx, cni, task, labels)
_, err := cninetwork.CreateCNINetwork(ctx, cni, task, labels)
if err != nil {
return err
}
ip, err := cninetwork.GetIPAddress(network, task)
ip, err := cninetwork.GetIPAddress(name, task.Pid())
if err != nil {
return err
}
log.Printf("%s has IP: %s.\n", name, ip.String())
log.Printf("%s has IP: %s.\n", name, ip)
_, waitErr := task.Wait(ctx)
if waitErr != nil {