Try docker-compose.
FROM centos:centos8
RUN dnf install -y nginx
CMD nginx -g 'daemon off;'
docker-compose.yml
version: '3'
services:
web:
build: .
ports:
- 8000:80
volumes:
- ./hoge:/hoge
//Start-up
$ docker-compose up -d
Creating network "docker-compose-test_default" with the default driver
Creating docker-compose-test_web_1 ... done
//Container confirmation
$ docker-compose ps
Name Command State Ports
-----------------------------------------------------------------------------------------
docker-compose-test_web_1 /bin/sh -c nginx -g 'daemo ... Up 0.0.0.0:8000->80/tcp
//Stop
$ docker-compose stop
Stopping docker-compose-test_web_1 ... done
//Stop&Delete
$ docker-compose down
Removing docker-compose-test_web_1 ... done
Removing network docker-compose-test_default
$ docker-compose ps
Name Command State Ports
------------------------------
docker-compose has the concept of a project, and you can give it a project name.
The container name seen by the docker-compose ps command was docker-compose-test_web_1, but the container name is the project name + service name.
The project name defaults to the directory name where docker-compose.yml is located.
To specify the project name, use the -p option or define it in the COMPOSE_PROJECT_NAME environment variable.
// -Specify with p.-Be careful where you put p. After up-docker instead of p-Do immediately after compose
$ docker-compose -p hogeee up -d
Creating network "hogeee_default" with the default driver
Building web
Step 1/3 : FROM centos:centos8
---> 0d120b6ccaa8
Step 2/3 : RUN dnf install -y nginx
---> Using cache
---> fc9418763f55
Step 3/3 : CMD nginx -g 'daemon off;'
---> Using cache
---> 6d41d3e27b18
Successfully built 6d41d3e27b18
Successfully tagged hogeee_web:latest
WARNING: Image for service web was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
Creating hogeee_web_1 ... done
//ps confirmation. every time-Note that you need to add p
$ docker-compose -p hogeee ps
Name Command State Ports
----------------------------------------------------------------------------
hogeee_web_1 /bin/sh -c nginx -g 'daemo ... Up 0.0.0.0:8000->80/tcp
//Stop&Delete
$ docker-compose -p hogeee down
Stopping hogeee_web_1 ... done
Removing hogeee_web_1 ... done
Removing network hogeee_default
//Specify with an environment variable.
$ COMPOSE_PROJECT_NAME=fuga docker-compose up -d
Creating network "fuga_default" with the default driver
Building web
Step 1/3 : FROM centos:centos8
---> 0d120b6ccaa8
Step 2/3 : RUN dnf install -y nginx
---> Using cache
---> fc9418763f55
Step 3/3 : CMD nginx -g 'daemon off;'
---> Using cache
---> 6d41d3e27b18
Successfully built 6d41d3e27b18
Successfully tagged fuga_web:latest
WARNING: Image for service web was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
Creating fuga_web_1 ... done
$ COMPOSE_PROJECT_NAME=fuga docker-compose ps
Name Command State Ports
--------------------------------------------------------------------------
fuga_web_1 /bin/sh -c nginx -g 'daemo ... Up 0.0.0.0:8000->80/tcp
version: '3'
services:
centos8:
image: centos:centos8
web:
build: .
ports:
- 8000:80
volumes:
- ./hoge:/hoge
You can control the boot order with depends_on. You can control the startup order, but since the next startup starts without waiting for the startup to complete, even if you start in the order of db-> web, the web may start before the db setup etc. is completed. In the meantime, accessing db from the web may result in an error. Here is a workaround ↓ https://docs.docker.com/compose/startup-order/
version: '3'
services:
centos8:
image: centos:centos8
web:
build: .
ports:
- 8000:80
volumes:
- ./hoge:/hoge
depends_on:
- centos8
Verification. Start in the order of centos8-> web. The opposite is true when deleting.
$ docker-compose up -d
Starting docker-compose-test_centos8_1 ... done
Starting docker-compose-test_web_1 ... done
//Delete
$ docker-compose down
Stopping docker-compose-test_web_1 ... done
Removing docker-compose-test_web_1 ... done
Removing docker-compose-test_centos8_1 ... done
Removing network docker-compose-test_default
Reverse depends_on.
version: '3'
services:
centos8:
image: centos:centos8
depends_on:
- web
web:
build: .
ports:
- 8000:80
volumes:
- ./hoge:/hoge
Verification. Now started from the web.
docker-compose up -d
Starting docker-compose-test_web_1 ... done
Starting docker-compose-test_centos8_1 ... done
Use a shared volume between containers. ↓ For the time being, try creating a volume with docker-compose.
version: '3'
services:
centos8:
image: centos:centos8
depends_on:
- web
web:
build: .
ports:
- 8000:80
volumes:
- ./hoge:/hoge
volumes:
hoge:
↓ volume is created.
$ docker-compose up -d
Creating network "docker-compose-test_default" with the default driver
Creating volume "docker-compose-test_hoge" with default driver
Creating docker-compose-test_web_1 ... done
Creating docker-compose-test_centos8_1 ... done
$ docker volume ls
DRIVER VOLUME NAME
local docker-compose-test_hoge
Mount volume with service.
version: '3'
services:
centos8:
image: centos:centos8
depends_on:
- web
volumes:
- hoge:/hoge
web:
build: .
ports:
- 8000:80
volumes:
- hoge:/hoge
volumes:
hoge:
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