Healthcheck starts while building an image #37362
Description
Description
The healthcheck script has started while an image is building, despite the document told "The health check will first run interval seconds after the container is started". It can be easily reproduced by following steps.
Steps to reproduce the issue:
FROM busybox
HEALTHCHECK --interval=1s --timeout=5s --start-period=5s --retries=3 CMD ping google.com # any script that doesn't work before the build steps have finished
RUN sleep 100000 # any time taking statementdocker build .ps -aux pingin a different terminal
Describe the results you received:
$ ps -aux | grep ping
root 12762 0.1 0.0 1228 4 ? Ss 14:48 0:00 ping google.com
root 12790 0.2 0.0 1228 4 ? Ss 14:48 0:00 ping google.com
root 12827 2.0 0.0 1228 4 ? Ss 14:48 0:00 ping google.com
kson 12838 0.0 0.0 15504 944 pts/1 S+ 14:48 0:00 grep --color=auto pingThe list is growing.
Describe the results you expected:
$ ps -aux | grep ping
kson 12772 0.0 0.0 15504 972 pts/1 S+ 14:48 0:00 grep --color=auto pingHealthcheck script starts when the container started. No result expected.
Additional information you deem important (e.g. issue happens only occasionally):
Output of docker version:
Client:
Version: 18.03.1-ce
API version: 1.37
Go version: go1.9.5
Git commit: 9ee9f40
Built: Thu Apr 26 07:17:20 2018
OS/Arch: linux/amd64
Experimental: false
Orchestrator: swarm
Server:
Engine:
Version: 18.03.1-ce
API version: 1.37 (minimum version 1.12)
Go version: go1.9.5
Git commit: 9ee9f40
Built: Thu Apr 26 07:15:30 2018
OS/Arch: linux/amd64
Experimental: false
I've tested on below 4 versions.
* docker-ce | 18.03.1~ce-0~ubuntu | https://download.docker.com/linux/ubuntu xenial/stable amd64 Packages
* docker-ce | 18.03.0~ce-0~ubuntu | https://download.docker.com/linux/ubuntu xenial/stable amd64 Packages
* docker-ce | 17.12.1~ce-0~ubuntu | https://download.docker.com/linux/ubuntu xenial/stable amd64 Packages
* docker-ce | 17.12.0~ce-0~ubuntu | https://download.docker.com/linux/ubuntu xenial/stable amd64 Packages
Output of docker info:
Containers: 1
Running: 0
Paused: 0
Stopped: 1
Images: 37
Server Version: 18.03.1-ce
Storage Driver: aufs
Root Dir: /var/lib/docker/aufs
Backing Filesystem: extfs
Dirs: 201
Dirperm1 Supported: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 773c489c9c1b21a6d78b5c538cd395416ec50f88
runc version: 4fc53a81fb7c994640722ac585fa9ca548971871
init version: 949e6fa
Security Options:
apparmor
seccomp
Profile: default
Kernel Version: 4.4.0-87-generic
Operating System: Ubuntu 16.04.3 LTS
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 992.3MiB
Name: fo4-aws-ldt
ID: O26T:JPIN:5UVX:J7R5:PFH6:BG2X:KU6G:OQB2:L6PQ:ELPE:EPTP:H3M6
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
WARNING: No swap limit support
Additional environment details (AWS, VirtualBox, physical, etc.):
- VirtualBox on Mac
- Physical