mirror of
https://github.com/openfaas/faasd.git
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ef689d7b62
When terminating a function and replacing it during an update, there was often an error about task precondition not met which meant having to try and or wait or being left in an inconsistent state. The new flow makes sure "Wait" is called in either code path and allows for a custom gap between the SIGTERM and SIGKILL through the grace_period env var - set as a Go duration. Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
66 lines
1.4 KiB
Go
66 lines
1.4 KiB
Go
package handlers
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import (
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"context"
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"errors"
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"log"
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"strings"
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"time"
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"github.com/containerd/containerd"
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"github.com/containerd/containerd/namespaces"
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)
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type Function struct {
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name string
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namespace string
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image string
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pid uint32
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replicas int
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IP string
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labels map[string]string
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annotations map[string]string
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secrets []string
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envVars map[string]string
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envProcess string
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memoryLimit int64
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createdAt time.Time
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}
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// ListFunctions returns a map of all functions with running tasks on namespace
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func ListFunctions(client *containerd.Client, namespace string) (map[string]*Function, error) {
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// Check if namespace exists, and it has the openfaas label
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valid, err := validNamespace(client.NamespaceService(), namespace)
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if err != nil {
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return nil, err
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}
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if !valid {
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return nil, errors.New("namespace not valid")
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}
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ctx := namespaces.WithNamespace(context.Background(), namespace)
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functions := make(map[string]*Function)
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containers, err := client.Containers(ctx)
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if err != nil {
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return functions, err
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}
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for _, c := range containers {
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name := c.ID()
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f, err := GetFunction(client, name, namespace)
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if err != nil {
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if !strings.Contains(err.Error(), "unable to get IP address for container") {
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log.Printf("List functions, skipping: %s, error: %s", name, err)
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}
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} else {
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functions[name] = &f
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}
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}
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return functions, nil
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}
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