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unable to execute oracle data setup script from docker compose

I am trying to set up oracle data once my oracle container is up and running, below is my compose file:
version: '3'
services:
oracle:
image: absolutapps/oracle-12c-ee
container_name: oracle-docker
ports:
- 8080:8080
- 1521:1521
environment:
CASSANDRA_BROADCAST_ADDRESS: 127.0.0.1
ORACLE_ALLOW_REMOTE: "true"
volumes:
- ./scripts/oracle-init.sh:/oracle-init.sh
oracle-init.sh:
#!/usr/bin/env bash
echo "### SETUP EXECUTION! ###"
sqlplus -s "system/oracle#localhost:1521/orcl /scripts/init-oracle.sql"
echo "### SETUP EXECUTED! ###"
init-oracle.sql :
CREATE USER ot_consumer_tryout IDENTIFIED BY ot_consumer_tryout;
Can anyone help me what is wrong with above snippets. My docker container getting started but sql script does not execute ,here is the log from terminal:
oracle-docker | Running init scripts...
oracle-docker | Init scripts in /oracle.init.d/: Ignoring /oracle.init.d/*
oracle-docker |
oracle-docker | Done with scripts we are ready to go

Look at the volume you created
- ./scripts/oracle-init.sh:/oracle-init.sh
which means inside your container the file is in '/oracle-init.sh' but your
container might be expecting in a different location something with folder name oracle.init.d as per your container log.
oracle-init.sh is trying to run /scripts/init-oracle.sql , hope your image already has it otherwise you will have to mount it as well in compose file.

Java container cant connect to MYSQL container with docker-compose

I was given a multy-steps task and im stuck !!
im trying to connect my Java container to my MYSQL container,but im getting 503 ERROR
HTTP ERROR 503
Problem accessing /. Reason:
Service Unavailable
docker-compose file :
version: "3.3"
services:
lavagna:
build: .
ports:
- "8080:8080"
networks:
- back_net
depends_on:
- my_db
environment:
spring.datasource.url: "jdbc:mysql://my-db:3306/lavagna"
my_db:
image: mysql:5.7
ports:
- "3306:3306"
networks:
- back_net
volumes:
- $PWD/mysql:/var/lib/mysql
environment:
MYSQL_ROOT_PASSWORD: 123
MYSQL_USER: eyal
MYSQL_PASSWORD: 123
networks:
back_net:
driver: bridge
I got the JAVA src files,i just used maven localy to build it and use target for the Java Dockerfile
java app dockerfile :
FROM openjdk:8-jre-alpine
EXPOSE 8080
COPY ./target/. .
COPY ./entrypoint.sh .
ENV DB_DIALECT MYSQL
ENV DB_URL jdbc:mysql://localhost:3306/lavagna
ENV DB_USER "root"
ENV DB_PASS "123"
ENV SPRING_PROFILE dev
RUN apk update \
&& apk add ca-certificates \
&& update-ca-certificates && apk add openssl
RUN chmod 774 entrypoint.sh
ENTRYPOINT [ "./entrypoint.sh" ]

I think you need a combination of comments and answers given already. Your containers are on the same network, so it appears to boil down to configuration.
In your docker file update your DB_URL to:
ENV DB_URL jdbc:mysql://my_db:3306/lavagna
If you use localhost your container will loopback to itself, and never hit the network.
In your docker-compose yml file, you have a typo in the url, try updating to:
spring.datasource.url: "jdbc:mysql://my_db:3306/lavagna"
As an aside, using depends_on does not wait for the service to be ready. It simply dictates start order as the documentation states:
There are several things to be aware of when using depends_on:
depends_on does not wait for db and redis to be “ready” before starting web - only until they have been started. If you need to wait for a service to be ready...

Docker postgres on local machine: connection to localhost:5432 refused. Check that the hostname and port are correct [duplicate]

I am building my first Springboot 2.0 application. I am trying to put my Springboot application into one docker container and my PostgresDB into another container.
My Dockerfile
FROM frolvlad/alpine-oraclejdk8:slim
VOLUME /tmp
ADD springboot-api-demo-0.1*.jar app.jar
RUN sh -c 'touch /app.jar'
EXPOSE 9443
ENTRYPOINT [ "sh", "-c", "java $JAVA_OPTS -Djava.security.egd=file:/dev/urandom -jar /app.jar" ]
My docker-compose.yml file
version: "2.1"
services:
springboot-api-demo:
image: "fw/springboot-api-demo"
mem_limit: 1024m
ports:
- "8080:8080"
environment:
- SPRING_PROFILES_ACTIVE=local
- AWS_REGION=local
- ENVIRONMENT=local
- AUTH_ENABLED=false
postgres:
container_name: pgdb
image: postgres:9.6-alpine
environment:
- 'POSTGRES_ROOT_PASSWORD=postgres'
- 'POSTGRES_USER=postgres'
- 'POSTGRES_PASSWORD=postgres'
ports:
- "54321:5432"
I am using Springboot JPA Data 2.0 with below config data in my application.properties
spring.datasource.url= jdbc:postgresql://localhost:54321/java_learning
spring.datasource.username=postgres
spring.datasource.password=postgres
I can test that Both of the Images are up. Also from docker log and docker events, I see that postgres Container is running fine, even I can access it and also created a DB too.
But springboot container started but i died because it could not connect to postgress and throwing error below.
Unable to obtain connection from database: The connection attempt
failed
Note that my host machine already has Postgres on port 5432 thats why I did a port mapping ofr 54321:5432 on my postgres container. Here is Proof :) -
➜ springboot-api-demo git:(master) ✗ lsof -i:54321
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
com.docke 44345 shailendra.singh 18u IPv4 0xf62897fbdd69e31d 0t0 TCP *:54321 (LISTEN)
com.docke 44345 shailendra.singh 21u IPv6 0xf62897fbdd119975 0t0 TCP localhost:54321 (LISTEN)
➜ springboot-api-demo git:(master) ✗ lsof -i:5432
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
postgres 715 shailendra.singh 5u IPv6 0xf62897fbb43e03b5 0t0 TCP localhost:postgresql (LISTEN)
postgres 715 shailendra.singh 6u IPv4 0xf62897fbbaeea9bd 0t0 TCP localhost:postgresql (LISTEN)
I am not sure what is the problem. But my Springboot application is not able to connect my postgres container which is running fine with proper creadentials.

Try with :
spring.datasource.url= jdbc:postgresql://pgdb:5432/java_learning
The postgres database is not running on localhost, it's running in the other container which has an other IP (yet unknown).
Thanksfully, docker-compose automatically create a network shared among all the containers in the docker-compose.yml (unless explicitly said to do not), as a result you can magically use the service name as an hostname.
Also, you have a typo in the port, Postgres use 5432 by default, not 54321

You are pointing your application towards localhost, but this is not shared between containers.
To access another container you have to refer to its hostname.
you should use the following datasource url:
spring.datasource.url=jdbc:postgresql://pgdb:5432/java_learning
See this simple tutorial about connecting to a container from another container with docker compose: https://docs.docker.com/compose/gettingstarted/

You're missing networking configuration in your docker-compose.yml specification. By using "networks" you can effectively communicate between containers by their service name (using dns, the service name as the hostname).
Here is an updated docker-compose.yml:
version: "2.1"
services:
springboot-api-demo:
image: "fw/springboot-api-demo"
mem_limit: 1024m
ports:
- "8080:8080"
environment:
- SPRING_PROFILES_ACTIVE=local
- AWS_REGION=local
- ENVIRONMENT=local
- AUTH_ENABLED=false
networks:
- mynet
postgres:
container_name: pgdb
image: postgres:9.6-alpine
environment:
- 'POSTGRES_ROOT_PASSWORD=postgres'
- 'POSTGRES_USER=postgres'
- 'POSTGRES_PASSWORD=postgres'
ports:
- "54321:5432"
networks:
- mynet
networks:
mynet:
driver: bridge
Your database url should look like spring.datasource.url=jdbc:postgresql://postgres:5432/java_learning (notice the hostname, postgres, is equal to that of the service name.

Apart from the above solutions provided JDK 11 java container with the mentioned configuration (connecting postgres via IP, localhost, servicename .. with postgres container exposed to LAN) still doesn't work. Upgrade to JDK latest version (17 currently) works for me - do consider this also when you use JDK 11 and trying java container (docker) communicating with postgres container.

How to use Envoy as a load balance for a Java web service?

I'm trying to set Envoy as a load balancer for a Java application. Following is the setup I'm trying to implement.
I followed Envoy Tutorial to get some idea and found a code. There, they use a front end envoy container as a single front end service, to distribute traffic among many backend containers. But for my work, I do not need such a front end container. So I modified the code and following are the files I created.
service-envoy.yaml
static_resources:
listeners:
- address:
socket_address:
address: 0.0.0.0
port_value: 80
filter_chains:
- filters:
- name: envoy.http_connection_manager
config:
codec_type: auto
stat_prefix: ingress_http
route_config:
name: local_route
virtual_hosts:
- name: service
domains:
- "*"
routes:
- match:
prefix: "/service"
route:
cluster: local_service
http_filters:
- name: envoy.router
config: {}
clusters:
- name: local_service
connect_timeout: 0.25s
type: strict_dns
lb_policy: round_robin
hosts:
- socket_address:
address: 127.0.0.1
port_value: 9000
admin:
access_log_path: "/dev/null"
address:
socket_address:
address: 0.0.0.0
port_value: 8081
Dockerfile-Service
FROM envoyproxy/envoy-alpine:latest
FROM java:8
ADD gs-actuator-service-0.1.0.jar gs-actuator-service-0.1.0.jar
ADD ./start_service.sh /usr/local/bin/start_service.sh
RUN chmod u+x /usr/local/bin/start_service.sh
ENTRYPOINT /usr/local/bin/start_service.sh
start-service.sh
#!/bin/sh
java -jar gs-actuator-service-0.1.0.jar &
envoy -c /etc/service-envoy.yaml --service-cluster service${SERVICE_NAME}
docker-compose.yml
version: '2'
services:
service1:
build:
context: .
dockerfile: Dockerfile-service
volumes:
- ./service-envoy.yaml:/etc/service-envoy.yaml
networks:
envoymesh:
aliases:
- service1
environment:
- SERVICE_NAME=1
expose:
- "80"
networks:
envoymesh: {}
gs-actuator-service-0.1.0.jar is the jar file which contains the web service. When run in localhost, it can be called using
localhost:9000/prime?number=10
When I run
sudo docker-compose up --build
it gives the following output with an error line at the end.
Building service1
Step 1/6 : FROM envoyproxy/envoy-alpine:latest
---> 44b4a2e0acd8
Step 2/6 : FROM java:8
---> d23bdf5b1b1b
Step 3/6 : ADD gs-actuator-service-0.1.0.jar gs-actuator-service-0.1.0.jar
---> fee1f402b547
Step 4/6 : ADD ./start_service.sh /usr/local/bin/start_service.sh
---> 52c2cc17c4dd
Step 5/6 : RUN chmod u+x /usr/local/bin/start_service.sh
---> Running in 95ee0537c3d1
Removing intermediate container 95ee0537c3d1
---> d8e9bdb2f95e
Step 6/6 : ENTRYPOINT /usr/local/bin/start_service.sh
---> Running in 27b20f261c0f
Removing intermediate container 27b20f261c0f
---> 26080be0b5ea
Successfully built 26080be0b5ea
Successfully tagged frontproxy_service1:latest
Recreating frontproxy_service1_1 ...
Recreating frontproxy_service1_1 ... done
Attaching to frontproxy_service1_1
service1_1 | /usr/local/bin/start_service.sh: 3:
/usr/local/bin/start_service.sh: envoy: not found
frontproxy_service1_1 exited with code 127
Can someone please point out where I'm getting this wrong?
Thank you

Are you on Windows? If you are, check all of your files with Notepad++ and at the bottom right you can change from CR LF to LF. Change it across all files, save it and try to run it again.

Host '172.23.0.9' is not allowed to connect to this MariaDB server

Hiho
Spring Settings
spring.jpa.hibernate.ddl-auto=update
spring.datasource.url= jdbc:mysql://vetdb:3306/vetdb?useSSL=false&allowPublicKeyRetrieval=true
spring.datasource.username=root
spring.datasource.testWhileIdle = true
spring.datasource.validationQuery = SELECT 1
spring.datasource.password=root
spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver
spring.datasource.platform=mysql
spring.datasource.initialize=true
spring.jpa.show-sql=false
spring.jpa.hibernate.naming-strategy = org.hibernate.cfg.ImprovedNamingStrategy
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
spring.jmx.default-domain=TierarztDatenController
endpoints.jmx.uniquie-names=true
Docker Compose
vetdb:
container_name: vetdb
hostname: vetdb
image: mariadb
restart: always
command: --default-authentication-plugin=mysql_native_password --innodb-flush-method=O_DSYNC --innodb-use-native-aio=0 --log_bin=ON
environment:
MYSQL_ROOT_PASSWORD: ${VET_DB_ROOT_PASSWORD}
MYSQL_DATABASE: ${VET_DB_NAME}
MYSQL_PASSWORD: ${VET_DB_PASSWORD}
MYSQL_ROOT_HOST: '%'
volumes:
# - "${VET_DB_PATH}/mysql-conf:/etc/mysql/conf.d"
- "${VET_DB_PATH}:/var/lib/mysql"
- "${VET_DB_PATH}/mysql-log:/var/log/mysql"
.env
VET_DB_PATH=./dockervolumes/microservices/VET/db
VET_DB_NAME=vetdb
VET_DB_ROOT_PASSWORD=root
VET_DB_PASSWORD=root
Exception: `java.sql.SQLException: null, message from server: "Host '172.23.0.9' is not allowed to connect to this MariaDB server"`
i added MYSQL_ROOT_HOST: '%' to allow everyone to connect to the db but it didnt work
i tried to use a config-file.cnf containing bind-address = 0.0.0.0 but it didnt work
funny thing is everything worked well before i restarted the container today and i didnt change this service in 3 days
i tried see if name/password = root work
$ docker exec -it vetdb bash
root#vetdb:/# mysql -u root -p
Enter password:
ERROR 1045 (28000): Access denied for user 'root'#'localhost' (using password: YES)
but root without password works (inside the container)
root#vetdb:/# mysql -u root
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 21
Server version: 10.3.9-MariaDB-1:10.3.9+maria~bionic-log mariadb.org binary distribution
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]>
if i just remove spring.datasource.password=root
or set it to spring.datasource.password=
then it results in the same exception
what am i doing wrong?

i changed the environment variables to this
environment:
- "MYSQL_ROOT_PASSWORD=${VET_DB_ROOT_PASSWORD}"
- "MYSQL_DATABASE=${VET_DB_NAME}"
- "MYSQL_ROOT_HOST=%"
and deleted everything rerun it and it worked
docker-compose down
docker rm -f $(docker container ls -aq)
docker-compose rm -v
docker volume prune
docker system prune
rm dockerdockervolumes/ -rf
and it worked