I'm trying to dockerize my Laravel app. In my local machine i have Mysql and MongoDB.
I have a script that run mysql restore and mongorestore to restore a production db.
In local environment i don't have problems because mysql and mongodb are installed locally.
Now, i created a docker-compose.yml with the build instructions:
version: '3'
services:
app:
build:
context: .
dockerfile: .docker/Dockerfile.dev
image: laravel-docker
ports:
- 8080:80
volumes:
- /srv/app/vendor
- .:/srv/app
links:
- mariadb
- redis
redis:
image: redis:latest
mariadb:
image: mariadb:latest
environment:
- MYSQL_ALLOW_EMPTY_PASSWORD=yes
- MYSQL_USER=root
mongo:
image: mongo
All works fine but i need to run mysql command from app container (that should call mysql command in mariadb container)
Just install a MySQL client in your app container.
Add something like this in your Dockerfile :
apt-get install mysql-client
Then you should be able to connect to your MySql server from your app container using the service name if they belong to the same network :
mysql -u USERNAME -p PASSWORD -h mariadb
Related
I have successfully containerized my basic Yii2 application with docker and it runs on localhost:8000. However, I cannot use the app effectively as most of its data are stored in migration files. Is there a way I could export the migrations into docker after running it? (or during execution)
This is my docker compose file
version: '2'
services:
php:
image: yiisoftware/yii2-php:7.1-apache
volumes:
- ~/.composer-docker/cache:/root/.composer/cache:delegated
- ./:/app:delegated
ports:
- '8000:80'
networks:
- my-network
db:
image: mysql:5.7
restart: always
environment:
- MYSQL_DATABASE=my-db
- MYSQL_PASSWORD=password
- MYSQL_ROOT_PASSWORD=password
ports:
- '3306:3306'
expose:
- '3306'
volumes:
- mydb:/var/lib/mysql
networks:
- my-network
memcached:
container_name: memcached
image: memcached:latest
ports:
- "0.0.0.0:11211:11211"
volumes:
restatdb:
networks:
my-network:
driver: bridge
and my Dockerfile
FROM alpine:3.4
ADD . /
COPY ./config/web.php ./config/web.php
COPY . /var/www/html
# Let docker create a volume for the session dir.
# This keeps the session files even if the container is rebuilt.
VOLUME /var/www/html/var/sessions
It is possible to run yii commands in docker. First let the yii2 container run in the background or another tab of the terminal. The yii commands can be run using the docker exec on the interactive interface which would let us interact with the running container
sudo docker exec -i <container-ID> php yii migrate/up
You can get the container ID using
sudo docker ps
I'm building 2 docker containers, "app" and "db", via a docker-compose file.
The app server just installs java/tomcat via a Dockerfile which is what docker-compose uses to build.
The db server uses an MS SQL image.
When I run:
docker-compose up
I follow that with a build process of software I need to load which deploys a war to the tomcat directory in the app server and builds the database in the database server.
My problem is: The build process can reference localhost:8080 to install/patch the software to the app server and reference localhost:1433 to install/patch the database portion of the software to the database server. However, when I start Tomcat the system doesn't come online because the app server can't connect to the database server via "localhost:1433" so it requires me to jump in and update the properties file after the build to the docker internal IP address and THEN it works.
My question is: How am I able to get my localhost and my app container to reference the DB in the same manner in a database url?
Dockerfile for app server:
FROM centos:centos7
COPY apache-tomcat-9.0.20.tar.gz /tmp/
WORKDIR /tmp/
RUN yum -y update
RUN yum -y install java-11-openjdk-devel
RUN tar -xf apache-tomcat-9.0.20.tar.gz
RUN mv apache-tomcat-9.0.20 /opt/tomcat/
RUN export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.212.b04-0.el7_6.x86_64/
RUN export PATH=$PATH:$JAVA_HOME/jre/bin
RUN export CATALINA_HOME=/opt/tomcat/
RUN export PATH=$PATH:$CATALINA_HOME/bin
WORKDIR /opt/tomcat/webapps
RUN mkdir testapp
enter code here
enter code here
Docker-Compose File:
version: '3.3'
services:
db:
image: "mcr.microsoft.com/mssql/server:2017-latest"
restart: always
volumes:
- db_data:/var/lib/mssql
environment:
- ACCEPT_EULA=Y
- SA_PASSWORD=Test123
network_mode: bridge
hostname: db
ports:
- "1433:1433"
app:
build: './testapp'
volumes:
- './system/build:/opt/tomcat/webapps/testapp/'
ports:
- "8080:8080"
- "8009:8009"
network_mode: bridge
tty: true
depends_on:
- db
volumes:
db_data:
Bring your service to the same network and target the service by service name. For that you need to define a docker network like below. For the following example I can access DB with http://mongo:27017.
mongo:
image: mongo:latest
ports:
- "27017:27017"
volumes:
- ./data/db:/data/db
networks:
- my-net
spring:
depends_on:
- mongo
image: docker-spring-http-alpine
ports:
- "8080:8080"
networks:
- my-net
networks:
my-net:
I have created a docker-compose file it has two services with Go and Mysql. It creates container for go and mysql. Now i am running code which try to connect to mysql database which is running as a docker container. but i get error.
docker-compose.yml
version: "2"
services:
app:
container_name: golang
restart: always
build: .
ports:
- "49160:8800"
links:
- "mysql"
depends_on:
- "mysql"
mysql:
image: mysql
container_name: mysql
volumes:
- dbdata:/var/lib/mysql
restart: always
environment:
- MYSQL_ROOT_PASSWORD=root
- MYSQL_DATABASE=testDB
- MYSQL_USER=root
- MYSQL_PASSWORD=root
ports:
- "3307:3306"
volumes:
dbdata:
Error while connecting to mysql database
golang | 2019/02/28 11:33:05 dial tcp 127.0.0.1:3306: connect: connection refused
golang | 2019/02/28 11:33:05 http: panic serving 172.24.0.1:49066: dial tcp 127.0.0.1:3306: connect: connection refused
golang | goroutine 19 [running]:
Connection with MySql Database
func DB() *gorm.DB {
db, err := gorm.Open("mysql", "root:root#tcp(mysql:3306)/testDB?charset=utf8&parseTime=True&loc=Local")
if err != nil {
log.Panic(err)
}
log.Println("Connection Established")
return db
}
EDIT:Updated docker file
FROM golang:latest
RUN go get -u github.com/gorilla/mux
RUN go get -u github.com/jinzhu/gorm
RUN go get -u github.com/go-sql-driver/mysql
COPY ./wait-for-it.sh .
RUN chmod +x /wait-for-it.sh
WORKDIR /go/src/app
ADD . src
EXPOSE 8800
CMD ["go", "run", "src/main.go"]
I am using gorm package which lets me connet to the database
depends_on is not a verification that MySQL is actually ready to receive connections. It will start the second container once the database container is running regardless it was ready for connections or not which could lead to such an issue with your application as it expects the database to be ready which might not be true.
Quoted from the documentation:
depends_on does not wait for db and redis to be “ready” before starting web - only until they have been started.
There are many tools/scripts that can be used to solve this issue like wait-for which sh compatible in case your image based on Alpine for example (You can use wait-for-it if you have bash in your image)
All you have to do is to add the script to your image through Dockerfile then use this command in docker-compose.yml for the service that you want to make it wait for the database.
What comes after -- is the command that you would normally use to start your application
version: "2"
services:
app:
container_name: golang
...
command: ["./wait-for", "mysql:3306", "--", "go", "run", "myapplication"]
links:
- "mysql"
depends_on:
- "mysql"
mysql:
image: mysql
...
I have removed some parts from the docker-compose for easier readability.
Modify this part go run myapplication with the CMD of your golang image.
See Controlling startup order for more on this problem and strategies for solving it.
Another issue that will rise after you solve the connection issue will be as the following:
Setting MYSQL_USER with root value will cause a failure in MySQL with this error message:
ERROR 1396 (HY000) at line 1: Operation CREATE USER failed for 'root'#'%'
This is because this user already exist in the database and it tries to create another. if you need to use the root user itself you can use only this variable MYSQL_ROOT_PASSWORD or change the value of MYSQL_USER so you can securely use it in your application instead of the root user.
Update: In case you are getting not found and the path was correct, you might need to write the command as below:
command: sh -c "./wait-for mysql:3306 -- go run myapplication"
First, if you are using latest version of docker compose you don't need the link argument in you app service. I quote the docker compose documentation Warning: The --link flag is a legacy feature of Docker. It may eventually be removed. Unless you absolutely need to continue using it, https://docs.docker.com/compose/compose-file/#links
I think the solution is to use the networks argument. This create a docker network and add each service to it.
Try this
version: "2"
services:
app:
container_name: golang
restart: always
build: .
ports:
- "49160:8800"
networks:
- my_network
depends_on:
- "mysql"
mysql:
image: mysql
container_name: mysql
volumes:
- dbdata:/var/lib/mysql
restart: always
networks:
- my_network
environment:
- MYSQL_ROOT_PASSWORD=root
- MYSQL_DATABASE=testDB
- MYSQL_USER=root
- MYSQL_PASSWORD=root
ports:
- "3307:3306"
volumes:
dbdata:
networks:
my_network:
driver: bridge
By the way, if you only connect to Mysql from your app service you don't need to expose the mysql port. If the containers runs in the same network they can reach all ports inside this network.
If my example doesn't works try this
run the docker compose and next go into the app container using
docker container exec -it CONTAINER_NAME bash
Install ping in order to test connection and then run ping mysql.
I have below docker-compose.yml
version: "2"
services:
api:
build:
context: .
dockerfile: ./build/dev/Dockerfile
container_name: "project-api"
volumes:
# 1. mount your workdir path
- .:/app
depends_on:
- mongodb
links:
- mongodb
- mysql
nginx:
image: nginx:1.10.3
container_name: "project-nginx"
ports:
- 80:80
restart: always
volumes:
- ./build/dev/nginx.conf:/etc/nginx/conf.d/default.conf
- .:/app
links:
- api
depends_on:
- api
mongodb:
container_name: "project-mongodb"
image: mongo:latest
environment:
- MONGO_DATA_DIR=/data/db
- MONGO_LOG_DIR=/dev/null
ports:
- "27018:27017"
command: mongod --smallfiles --logpath=/dev/null # --quiet
mysql:
container_name: "gamestore-mysql"
image: mysql:5.7.23
ports:
- "3306:3306"
environment:
MYSQL_DATABASE: project_test
MYSQL_USER: user
MYSQL_PASSWORD: user
MYSQL_ROOT_PASSWORD: root
And below .gitlab-ci.yml
test:
stage: test
image: docker:latest
services:
- docker:dind
variables:
DOCKER_DRIVER: overlay2
before_script:
- apk add --no-cache py-pip
- pip install docker-compose
script:
- docker-compose up -d
- docker-compose exec -T api ls -la
- docker-compose exec -T api composer install
- docker-compose exec -T api php core/init --env=Development --overwrite=y
- docker-compose exec -T api vendor/bin/codecept -c core/common run
- docker-compose exec -T api vendor/bin/codecept -c core/rest run
When i running my gitlab pipeline it's become field because i think gitlab can't work with services runned by docker-compose.
The error says that mysql refuse the connection.
I need this connection because my test written by codeception will test my models and api actions.
I want test my branches every time any one push in them and if pass just in develop deploy into test server and in master deploy on production server.
What is best way to run my test in gitlab ci/cd and then deploy them in my server?
You should use GitLab CI services instead of docker-compose.
You have to pick one image as your main, in which your commands will be run, and other containers just as services.
Sadly CI services cannot have mounted files in gitlab, you have to be able to configure them with env variables, or you need to create you own image with files in it (you can do that CI stage)
I would suggest you to don't use nginx, and use built-in php server for tests. It that's not possible (you have spicifix nginx config), you will need to build yourself nginx image with copied files inside it.
Also for PHP (the api service in docker-compose.yaml i assume), you need to either build the image ahed or copy command from your dockerfile to script.
So the result should be something like:
test:
stage: test
image: custom-php-image #build from ./build/dev/Dockerfile
services:
- name: mysql:5.7.23
alias: gamestore-mysql
- name: mongo:latest
alias: project-mongodb
command: mongod --smallfiles --logpath=/dev/null
variables:
MYSQL_DATABASE: project_test
MYSQL_USER: user
MYSQL_PASSWORD: user
MYSQL_ROOT_PASSWORD: root
MONGO_DATA_DIR: /data/db
MONGO_LOG_DIR: /dev/null
script:
- api ls -la
- composer install
- php core/init --env=Development --overwrite=y
- php -S localhost:8000 # You need to configure your built-in php server probably here
- vendor/bin/codecept -c core/common run
- vendor/bin/codecept -c core/rest run
I don't know your app, so you will probably have to made some tweaks.
More on that:
https://docs.gitlab.com/ee/ci/docker/using_docker_images.html#define-image-and-services-from-gitlab-ciyml
https://docs.gitlab.com/ee/ci/services/
http://php.net/manual/en/features.commandline.webserver.php
I have mysql DB running in a container and web app running in another container. My use case is once the DB container is up and running app container has to insert some initial data to DB using Liquibase and start the app. My docker yml looks like below.
db:
build: kdb
user: "1000:50"
volumes:
- /data/mysql:/var/lib/mysql
container_name: kdb
environment:
- MYSQL_ALLOW_EMPTY_PASSWORD=yes
image: kdb
ports:
- "3307:3306"
k-api:
container_name: k_api
hostname: k-api
domainname: i.com
image: k_api
volumes:
- /Users/agu/work:/data
build:
context: ./api
args:
KB_API_WAR: k-web-1.2.9.war
KB_API_URL: https://artifactory.b-aws.i.com
ports:
- "8097:8080"
depends_on:
- db
#command: [/usr/local/bin/wait-for-it.sh, "db:3306","-s","-t","0","--","/bin/sh" "wait_for_liquibase.sh"]
links:
- "db:kdb_docker_host"
And in my Dockerfile for api i have entry point for a shell script called "wait_for_liquibase.sh"
CMD ["wait_for_liquibase.sh"]
wait_for_liquibase.sh:
#!/bin/sh
set -e
#RUN liquibase
mvn clean install -X -PdropAll -Dcontexts=test -Dliquibase.user=XX -Dliquibase.pass=XX -Dliquibase.host=db -Dliquibase.port=3306 -Dliquibase.schema=knowledgebasedb -DpromptOnNonLocalDatabase=false -Dcontexts=test -f k/k-liquibase
/usr/local/tomcat/bin/catalina.sh run
The issue is once the DB container is up and running app container is not able to reach the DB server to perform liquibase setup for database. I see the below error.
Communication failure: Unknown database host -Dliquibase.host=db.
I am assuming you are using version 1.
You giving an alias to your "db" service, you will need to use that alias, kdb_docker_host
Also, the ports are mapping to the host machine, to expose ports between containers yuo will need to use the expose property.
expose:
- 3306
I used this in Docker file RUN apt-get update
RUN apt-get install netcat -y
ADD wait-for-base.sh /wait-for-base.sh
CMD ["/wait-for-base.sh"]
and in wait-for-base.sh :
#!/bin/bash
while ! nc -z db 3306; do sleep 3; done
[my command to run]
In your case /usr/local/tomcat/bin/catalina.sh run