How can I persist the flow.xml.gz file in nifi docker container?
I am using a docker-compose file, it is giving me errors such as not finding certain files.
Didi you encounter the same issue?
Thanks
version: "3.3"
services:
nifi:
image: apache/nifi
volumes:
- /home/ubuntu/nifi/conf:/opt/nifi/nifi-current/conf
#- ./flow/flow.xml.gz:/opt/nifi/nifi-current/conf/flow.xml.gz
ports:
- "8080:8080"
Apparently NiFi doesn't allow you to only persist the flow.xml.gz file, it gives error and the container shuts.
You need to persist the whole /opt/nifi/nifi-current/conf/ folder
I solved this issue changing the path for the flow.xml.gz to another directory. Here is my docker-compose.yaml for reference:
version: "3.9"
services:
nifi:
container_name: nifi
image: apache/nifi:1.15.0
ports:
- 8443:8443
volumes:
- ./config:/conf
environment:
- SINGLE_USER_CREDENTIALS_USERNAME=admin
- SINGLE_USER_CREDENTIALS_PASSWORD=S3curePa55word
- NIFI_SENSITIVE_PROPS_KEY=pUaEVgyGKT61fMCAWNbjJPMwAcQDuDj4
entrypoint: >
bash -c "echo Overwriting entrypoint
&& echo Replace path for flow.xml.gz
&& sed -i 's#=./conf/flow.xml.gz#=/conf/flow.xml.gz#g' /opt/nifi/nifi-current/conf/nifi.properties
&& /opt/nifi/scripts/start.sh"
Related
I have two APIs. One is located in /first_project/api and the other in /another_project/api.
Both have docker-compose.yml inside them. And this is their respective docker-compose.yml files:
version: "3.9"
services:
api:
image: custom_image_name
container_name: first_project_api
working_dir: /first_project/api
ports:
- 52148:5000
volumes:
- /first_project/api:/first_project/api
command: >
bash -c
"
dotnet Api.dll
&& tail -f /dev/null
"
networks:
- first_project_network
networks:
first_project_network:
name: first_project_network
driver: bridge
The second one, is like this one. Just first_project is replaced with second_project.
However, when I use docker-compose down in any of the API directories, docker brings down the other container as well.
What's happening here? How can I debug this?
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've been using localstack to develop a service against locally. I've just been running their docker image via docker run --rm -p 4567-4583:4567-4583 -p 8080:8080 localstack/localstack
And then I manually run a small script to set up my S3 buckets, SQS queues, etc.
Now, I'd like to make this easier for others so I thought I'd just add a Dockerfile and docker-compose.yml file. Unfortunately, when I try to get this up and running, using docker-compose up I get an error that the command from my setup script can't connect to the localstack services.
make_bucket failed: s3://localbucket Could not connect to the endpoint URL: "http://localhost:4572/localbucket"
Dockerfile:
FROM localstack/localstack
#since this is just local dev set up, localstack doesn't require
anything specific here.
ENV AWS_DEFAULT_REGION='[useast1]'
ENV AWS_ACCESS_KEY_ID='[lloyd]'
ENV AWS_SECRET_ACCESS_KEY='[christmas]'
COPY bin/localSetup.sh /localSetup.sh
COPY fixtures/notifications.json /notifications.json
RUN ["chmod", "+x", "/localSetup.sh"]
RUN pip install awscli
# expose service & web dashboard ports
EXPOSE 4567-4582 8080
ENTRYPOINT ["/localSetup.sh"]
docker-compose.yml
version: '3'
services:
localstack:
build: .
ports:
- "8080:8080"
- "4567-4582:4567-4582"
localSetup.sh
#!/bin/bash
aws --endpoint-url=http://localhost:4572 s3 mb s3://localbucket
#additional similar calls but left off for brevity
I've tried switching localhost to 127.0.0.1 in my script commands, but I wind up with the same error. I'm probably missing something silly here.
There is another way to create your custom AWS resources when localstack freshly starts up. Since you already have a bash script for your resources, you can simply volume mount your script to /docker-entrypoint-initaws.d/.
So my docker-compose file would be:
localstack:
image: localstack/localstack:latest
container_name: localstack_aws
ports:
- '4566:4566'
volumes:
- './localSetup.sh:/etc/localstack/init/ready.d/init-aws.sh'
Also, I would prefer awslocal over aws --endpoint in the bash script, as it leverages the credentials work and endpoint for you.
try adding hostname to the docker-compose file and editing your entrypoint file to reflect that hostname.
docker-compose.yml
version: '3'
services:
localstack:
build: .
hostname: localstack
ports:
- "8080:8080"
- "4567-4582:4567-4582"
localSetup.sh
#!/bin/bash
aws --endpoint-url=http://localstack:4572 s3 mb s3://localbucket
This was my docker-compose-dev.yaml I used for testing out an app that was using localstack. I used the command docker-compose -f docker-compose-dev.yaml up, I also used the same localSetup.sh you used.
version: '3'
services:
localstack:
image: localstack/localstack
hostname: localstack
ports:
- "4567-4584:4567-4584"
- "${PORT_WEB_UI-8082}:${PORT_WEB_UI-8082}"
environment:
- SERVICES=s3
- DEBUG=1
- DATA_DIR=${DATA_DIR- }
- PORT_WEB_UI=${PORT_WEB_UI- }
- DOCKER_HOST=unix:///var/run/docker.sock
volumes:
- "${TMPDIR:-/tmp/localstack}:/tmp/localstack"
- "/var/run/docker.sock:/var/run/docker.sock"
networks:
- backend
sample-app:
image: "sample-app/sample-app:latest"
networks:
- backend
links:
- localstack
depends_on:
- "localstack"
networks:
backend:
driver: 'bridge'
I'm trying to use Docker to containerize a MySQL (MariaDB actually) database. I figured out how to store MySQL data (/var/lib/mysql) in a volume mounted from a host directory.
However, because the underlying filesystem is different from host to host there are some inconsistencies, for example table names are case insensitive on NTFS (Windows). Also, it looks like if the database is created on a Linux host it doesn't work on a Windows host (haven't figured out why exactly).
Therefore, I want to store the data on a disk image and mount it inside the container, i.e. db-data.img formatted as ext4. But I'm facing a strange problem, when mounting this image inside the container:
$ docker run -v $PWD:/outside --rm -it ubuntu /bin/bash
# dd if=/dev/zero of=/test.img bs=1M count=100
# mkfs.ext4 test.img
# mount -o loop -t ext4 test.img /mnt
mount: /mnt: mount failed: Operation not permitted.
Using another directory instead of /mnt didn't work either.
Why does it refuse to mount the img file?
I would suggest to use docker-compose and just use a volume declared in the docker-compose.yml configuration.
Something like this:
version: '3'
services:
mysql:
image: mysql
environment:
MYSQL_ROOT_PASSWORD: $MYSQL_ROOT_PASSWORD
MYSQL_USER: $MYSQL_USER
MYSQL_PASS: $MYSQL_PASSWORD
volumes:
- mysql-data:/var/lib/mysql
volumes:
mysql-data:
The mysql-data volume should be stored as a separate volume, independent from the host operating system. The difference to just mounting a directory on the host, it's basically mounting a volume container (which you could also do without docker-compose, but it's more work).
It will not work inside of docker image, Docker blocks access to mouning filesystems (and loop devices). Should be easier create these image earlier, mount and connect to docker as folder by -v.
P.S. Another option is dump your database to sql and restore from windows.
I managed to solve this by using the privileged option in docker-compose.yml:
privileged: true
(or --privileged in the docker command)
Here is my final docker-compose.yml:
version: '3'
services:
db:
build: ./db
image: my_db
container_name: db
privileged: true
ports:
- "3306:3306"
environment:
- MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
- MYSQL_USER=${MYSQL_USER}
- MYSQL_PASSWORD=${MYSQL_PASSWORD}
- MYSQL_DATABASE=${MYSQL_DATABASE}
volumes:
- ${MYSQL_DATA_IMG}:/data.img
restart: always
Dockerfile:
FROM mariadb
COPY my-custom.cnf /etc/mysql/conf.d/custom.cnf
COPY run.sh /usr/local/bin/run-mariadb.sh
ENTRYPOINT ["run-mariadb.sh"]
and a custom entry point script that executes mount (run.sh):
#!/bin/sh
# For this mount comamnd to work the DB container must be started
# with --privileged.
mount -o loop /data.img /var/lib/mysql
# Call the entry point script of MariaDB image.
exec /usr/local/bin/docker-entrypoint.sh mysqld
for storing database data make docker-compose.yml will look like
if you want to use Dockerfile
version: '3.1'
services:
php:
build:
context: .
dockerfile: Dockerfile
ports:
- 80:80
volumes:
- ./src:/var/www/html/
db:
image: mysql
command: --default-authentication-plugin=mysql_native_password
restart: always
environment:
MYSQL_ROOT_PASSWORD: example
volumes:
- mysql-data:/var/lib/mysql
adminer:
image: adminer
restart: always
ports:
- 8080:8080
volumes:
mysql-data:
your docker-compose.yml will looks like
if you want to use your image instead of Dockerfile
version: '3.1'
services:
php:
image: php:7.4-apache
ports:
- 80:80
volumes:
- ./src:/var/www/html/
db:
image: mysql
command: --default-authentication-plugin=mysql_native_password
restart: always
environment:
MYSQL_ROOT_PASSWORD: example
volumes:
- mysql-data:/var/lib/mysql
adminer:
image: adminer
restart: always
ports:
- 8080:8080
volumes:
if you want to store or preserve data of mysql then
must remember to add two lines in your docker-compose.yml
volumes:
- mysql-data:/var/lib/mysql
and
volumes:
mysql-data:
after that use this command
docker-compose up -d
now your data will persistent and will not be deleted even after using this command
docker-compose down
extra:- but if you want to delete all data then you will use
docker-compose down -v
plus you can check your data list by this command
docker volume ls
DRIVER VOLUME NAME
local 35c819179d883cf8a4355ae2ce391844fcaa534cb71dc9a3fd5c6a4ed862b0d4
local 133db2cc48919575fc35457d104cb126b1e7eb3792b8e69249c1cfd20826aac4
local 483d7b8fe09d9e96b483295c6e7e4a9d58443b2321e0862818159ba8cf0e1d39
local 725aa19ad0e864688788576c5f46e1f62dfc8cdf154f243d68fa186da04bc5ec
local de265ce8fc271fc0ae49850650f9d3bf0492b6f58162698c26fce35694e6231c
local phphelloworld_mysql-data
I'm in Fedora 23 and i'm using docker-compose to build two containers: app and db.
I want to use that docker as my dev env, but have to execute docker-compose build and up every time i change the code isn't nice. So i was searching and tried the "volumes" option but my code doesn't get copied to docker.
When i run docker-build, a "RUN ls" command doesn't list the "app" folder or any files of it.
Obs.: in the root folder I have: docker-compose.yml, .gitignore, app (folder), db (folder)
Obs¹.: If I remove the volumes and working_dir options and instead I use a "COPY . /app" command inside the app/Dockerfile it works and my app is running, but I want it to sync my code.
Anyone know how to make it work?
My docker-compose file is:
version: '2'
services:
app:
build: ./app
ports:
- "3000:3000"
depends_on:
- db
environment:
- DATABASE_HOST=db
- DATABASE_USER=myuser
- DATABASE_PASSWORD=mypass
- DATABASE_NAME=dbusuarios
- PORT=3000
volumes:
- ./app:/app
working_dir: /app
db:
build: ./db
environment:
- MYSQL_ROOT_PASSWORD=123
- MYSQL_DATABASE=dbusuarios
- MYSQL_USER=myuser
- MYSQL_PASSWORD=mypass
Here you can see my app container Dockerfile:
https://gist.github.com/jradesenv/d3b5c09f2fcf3a41f392d665e4ca0fb9
Heres the output of the RUN ls command inside Dockerfile:
bin
boot
dev
etc
home
lib
lib64
media
mnt
opt
proc
root
run
sbin
srv
sys
tmp
usr
var
A volume is mounted in a container. The Dockerfile is used to create the image, and that image is used to make the container. What that means is a RUN ls inside your Dockerfile will show the filesystem before the volume is mounted. If you need these files to be part of the image for your build to complete, they shouldn't be in the volume and you'll need to copy them with the COPY command as you've described. If you simply want evidence that these files are mounted inside your running container, run a
docker exec $container_name ls -l /
Where $container_name will be something like ${folder_name}_app_1, which you'll see in a docker ps.
Two things, have you tried version: '3' version two seems to be outdated. Also try putting the working_dir into the Dockerfile rather than the docker-compose. Maybe it's not supported in version 2?
This is a recent docker-compose I have used with volumes and workdirs in the respective Dockerfiles:
version: '3'
services:
frontend:
build:
context: ./frontend
dockerfile: Dockerfile.dev
ports:
- 3001:3001
volumes:
- ./frontend:/app
networks:
- frontend
backend:
build: .
ports:
- 3000:3000
volumes:
- .:/app
networks:
- frontend
- backend
depends_on:
- "mongo"
mongo:
image: mongo
volumes:
- ./data/db:/data/db
ports:
- 27017:27017
networks:
- backend
networks:
frontend:
backend:
You can extend or override docker compose configuration. Please follow for more info: https://docs.docker.com/compose/extends/
I had this same issue in Windows!
volumes:
- ./src/:/var/www/html
In windows ./src/ this syntax might not work in regular command prompt, so use powershell instead and then run docker-compose up -d.
it should work if it's a mounting issue.