Logs are not followed when using journald log-driver with systemd 255 #46983
Description
Description
When journald log-driver is used, running docker logs --follow --tail would not follow logs if started before any output is produced.
Reproduce
-
Enable journald logging driver by putting
{ "log-driver": "journald" }into/etc/docker/daemon.json. -
Run the following script:
#!/bin/sh
trap 'docker kill logs-test' EXIT
docker kill logs-test
docker run --rm --name logs-test --detach alpine sh -c 'sleep 1; while sleep 0.1; do echo $((N++)); done'
# sleep 2
docker logs --follow --tail 1 logs-testExpected behavior
Expected result: it should print container output, i.e.,0, 1, 2, 3, and so on.
Actual result: it prints nothing. However, if you un-comment the sleep 2 line, it will print the numbers as expected.
docker version
Client:
Version: 24.0.7
API version: 1.43
Go version: go1.21.3
Git commit: afdd53b4e3
Built: Sun Oct 29 15:42:02 2023
OS/Arch: linux/amd64
Context: default
Server:
Engine:
Version: 24.0.7
API version: 1.43 (minimum version 1.12)
Go version: go1.21.3
Git commit: 311b9ff0aa
Built: Sun Oct 29 15:42:02 2023
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: v1.7.11
GitCommit: 64b8a811b07ba6288238eefc14d898ee0b5b99ba.m
runc:
Version: 1.1.10
GitCommit:
docker-init:
Version: 0.19.0
GitCommit: de40ad0docker info
Client:
Version: 24.0.7
Context: default
Debug Mode: false
Server:
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 1
Server Version: 24.0.7
Storage Driver: overlay2
Backing Filesystem: btrfs
Supports d_type: true
Using metacopy: true
Native Overlay Diff: false
userxattr: false
Logging Driver: journald
Cgroup Driver: systemd
Cgroup Version: 2
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: inactive
Runtimes: io.containerd.runc.v2 runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 64b8a811b07ba6288238eefc14d898ee0b5b99ba.m
runc version:
init version: de40ad0
Security Options:
seccomp
Profile: builtin
cgroupns
Kernel Version: 6.6.7-arch1-1
Operating System: Arch Linux
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 1.926GiB
Name: archlinux
ID: bb0ac9f5-421b-45df-9718-ef4d1d752224
Docker Root Dir: /var/lib/docker
Debug Mode: false
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: falseAdditional Info
No response