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Supporting proxied Docker APIs through DOCKER_HOST (#70)

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Frederik Ring 2022-02-18 09:08:21 +01:00 committed by GitHub
parent 180438f1fc
commit 58b42b9036
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2 changed files with 4 additions and 2 deletions
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3
README.md
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@ -80,7 +80,8 @@ services:
- data:/backup/my-app-backup:ro - data:/backup/my-app-backup:ro
# Mounting the Docker socket allows the script to stop and restart # Mounting the Docker socket allows the script to stop and restart
# the container during backup. You can omit this if you don't want # the container during backup. You can omit this if you don't want
# to stop the container # to stop the container. In case you need to proxy the socket, you can
# also provide a location by setting `DOCKER_HOST` in the container
- /var/run/docker.sock:/var/run/docker.sock:ro - /var/run/docker.sock:/var/run/docker.sock:ro
# If you mount a local directory or volume to `/archive` a local # If you mount a local directory or volume to `/archive` a local
# copy of the backup will be stored there. You can override the # copy of the backup will be stored there. You can override the

3
cmd/backup/script.go
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@ -90,7 +90,8 @@ func newScript() (*script, error) {
s.file = timeutil.Strftime(&s.stats.StartTime, s.file) s.file = timeutil.Strftime(&s.stats.StartTime, s.file)
_, err := os.Stat("/var/run/docker.sock") _, err := os.Stat("/var/run/docker.sock")
if !os.IsNotExist(err) { _, dockerHostSet := os.LookupEnv("DOCKER_HOST")
if !os.IsNotExist(err) || dockerHostSet {
cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation()) cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
if err != nil { if err != nil {
return nil, fmt.Errorf("newScript: failed to create docker client") return nil, fmt.Errorf("newScript: failed to create docker client")