I have a problem with performance of my Dockerized app. I have Windows OS. When I run my app using xampp it takes the page ~1 second to load. When I run it inside of Docker it takes ~5 seconds for the page to load. I tried:
1. Docker
2. Docker Toolbox (which creates VirtualBox linux machine and runs Docker inside of it)
Result are the same. Here is my Docker-compose file:
version: '3'
networks:
default:
driver: bridge
services:
webserver:
build: ./docker/webserver
image: yiisoftware/yii2-php:7.3-apache
ports:
- "80:80"
- "443:443"
networks:
- default
volumes:
- /aaa:/var/www/html
links:
- db:mysql
environment:
MYSQL_PORT_3306_TCP_ADDR: db
db:
image: mysql:5.7
ports:
- "3306:3306"
networks:
- default
volumes:
- ./db:/var/lib/mysql
environment:
- MYSQL_ROOT_PASSWORD=pass
- MYSQL_DATABASE=aaa
Can anybody give me a hint how to fix this? Or this is a regular behavior on Windows pc? Thank you.
The reason was that there was no APCU inside of the container. And without the cache code was 20 times slowlier. Always check if you need all necessary libs and modules inside of your containers!
Related
We are using a docker-compose file for creating a selenium grid network and after upgrading to selenium grid version 4.0.0 we have found that the grid is not registering to the node.
In this case, we are always receiving the below error.
chrome_1 | 12:18:47.180 INFO [SelfRegisteringRemote$1.run] - Couldn't register this node: The hub is down or not responding: The hub responded with 404
We tried to revert back to the previous version and found that it is working fine. Can you help us identify why it is not working in Selenium Grid 4? Is there any additional settings required to be done? We tried to find in the Selenium Grid 4 official page, but couldn't find much.
Attaching docker-compose file for reference
version: '3.8'
services:
selenium:
image: selenium/hub
ports:
- 4444:4444
environment:
GRID_MAX_SESSION: 10
chrome:
image: selenium/node-chrome-debug
shm_size: 2gb
depends_on:
- selenium
environment:
- HUB_HOST=selenium
- NODE_MAX_INSTANCES=10
- NODE_MAX_SESSION=10
ports:
- 5901:5900
You need to read the following about all the changes to the grid at the following link: Docker images for the Selenium Grid Server
Your docker-compose.yml file based on the above will now be:
version: '3.8'
services:
selenium:
image: selenium/hub
ports:
- 4442:4442
- 4443:4443
- 4444:4444
chrome:
image: selenium/node-chrome-debug
shm_size: 2gb
depends_on:
- selenium
environment:
- SE_EVENT_BUS_HOST=selenium
- SE_EVENT_BUS_PUBLISH_PORT=4442
- SE_EVENT_BUS_SUBSCRIBE_PORT=4443
- SE_NODE_OVERRIDE_MAX_SESSIONS=true
- SE_NODE_MAX_SESSIONS=10
ports:
- 5901:5900
However, you need to read the full details from the link to ensure you have the correct setup
Check out this example https://github.com/SeleniumHQ/docker-selenium/blob/trunk/docker-compose-v3.yml
I copied the values in that file and it worked for me.
From the docs
is there any way to mention which version of selenoid/video-recorder should be used while selenoid is started? either in docker-compose.yml or command line?
I get following error, due to the docker pull limit issue, so I need to mention the specific version i have pulled earlier.
2021/04/08 10:35:59 [909] [5.64s] [SESSION_FAILED] [test] [x.x.x.x] [chrome-89.0] [x.x.x.x:4444] [-] [6] [start video container: create video container: Error response from daemon: No such image: selenoid/video-recorder:latest-release]
Following is my docker compose file.
version: '3'
services:
selenoid:
network_mode: bridge
image: aerokube/selenoid:1.10.1
volumes:
- "/opt/selenoid:/etc/selenoid"
- "/var/run/docker.sock:/var/run/docker.sock"
- "/opt/selenoid/video:/opt/selenoid/video"
environment:
- OVERRIDE_VIDEO_OUTPUT_DIR=/opt/selenium/video
- TZ=America/Montreal
- limit=10
command: ["-conf", "/etc/selenoid/browsers.json", "-video-output-dir", "/opt/selenoid/video"]
ports:
- "4444:4444"
selenoid-ui:
image: "aerokube/selenoid-ui"
network_mode: bridge
links:
- selenoid
ports:
- "8080:8080"
command: ["--selenoid-uri", "http://selenoid:4444"]
Respective image can be specified with -video-recorder-image flag in in command section. All available flags are listed here: https://aerokube.com/selenoid/latest/#_selenoid_cli_flags
I'm not sure if it is a bug or just me being stupid but here is the case.
I want to build my image based on StandaloneChromeDebug. Following the Wiki:
Pull the repo.
Generate image:
$ make standalone_chrome_debug
Build the Dockerfile to insure that no errors arise:
$ docker build --no-cache etc/docker-selenium/StandaloneChromeDebug/
Set up my image to the docker-compose.yml like:
selenium-hub:
container_name: selenium-hub
build: ./etc/docker-selenium/StandaloneChromeDebug/
volumes:
- /dev/shm:/dev/shm
ports:
- "4444:4444"
- "5900:5900"
environment:
- HUB_HOST=selenium-hub
- HUB_PORT=4444
And... nothing. The container is running (no errros) but Selenium doesn't work, container log is empty, /opt/ folder is empty. What am i doing wrong? How to debug the thing?
Path is wrong, use build: /etc/docker-selenium/StandaloneChromeDebug/ without .
If you try to cd to ./etc/docker-selenium/StandaloneChromeDebug/, you will get an error.
version: "3.5"
services:
selenium-hub:
container_name: selenium-hub
build: /etc/docker-selenium/StandaloneChromeDebug/
volumes:
- /dev/shm:/dev/shm
ports:
- "4444:4444"
- "5900:5900"
environment:
- HUB_HOST=selenium-hub
- HUB_PORT=4444
Exapmle:
I feel you are using "build" tag in your compose file rather than "image". Please use "image" tag instead and see if that runs your image correctly.
Also can you please show how you are launching your docker services and what the output is?
Reference to build command
I have reports generated in gradle container for my selenium tests, I am trying to copy the files from docker container to local host. As a work around, I have used docker cp to copy files from container to my local and it works. How to achieve it with docker-compose volumes.
Below is my docker-compose.yml
version: "3 "
services:
selenium-hub:
image: selenium/hub
container_name: selenium-hub_compose
ports:
- "4444:4444"
chrome:
image: selenium/node-chrome-debug
container_name: selenium-chrome
depends_on:
- selenium-hub
ports:
- "5900"
environment:
- http_proxy=http://x.x.x.x:83
- https_proxy=http://x.x.x.x:83
- HUB_HOST=selenium-hub
- HUB_PORT=4444
gradle:
image: gradle:jdk8
container_name: selenium-gradle
build:
context: .
dockerfile: dockerfile
I run the command docker-compose up -> it runs the selenium tests and generates the report in the container.
Can anyone help on this?
The normal way to pass data from container to host is using docker volumes.
In short you specify a host directory and map it to the directory inside container. And that directory should be used to save your test reports
services:
selenium-hub:
image: selenium/hub
container_name: selenium-hub_compose
ports:
- "4444:4444"
volumes:
- ./path/to/report/folder:/host/reports
See docker documentation
https://docs.docker.com/compose/compose-file/#/volumes-volumedriver
Similar question:
How do I mount a host directory as a volume in docker compose
Power off the machine in Virtual box -> Change the Advanced settings in Virtual box
Goto Shared Folders in Virtual box
Give Path :: C:\DockerResults : Give a logical name for the Folder name
Restart the machine in DockerTerminal with the below command
docker-machine restart default
After machine is started open the Virtual box
Create a directory in the Virtual machine : sudo mkdir /Results
Mount the directory to the local windows machine by executing the below command in virtual box:
Sudo mount –t vboxsf DockerResults /Results
Add volumes as below in docker-compose file
volumes:
- /DockerResults:/home/Reports/
I have multiple jenkins jobs, each attempt to start a selenium standalone container, although when multiple jobs run in parallel in the same jenkins slave, it throws the following error:
0.0.0.0:4444 failed: port is already allocated
Which is fair enough because the default port for the selenium standalone is set to 4444. My question is how I override the selenium standalone port? I thought it was related to ports: ... but clearly not... any ideas?
Below is my docker-compose file:
maven:
build: "."
links:
- "selenium:selenium"
working_dir: /code/
volumes:
- ".:/code"
entrypoint:
- mvn
- verify
- -Dwebdriver.remote.url=http://selenium:4444/wd/hub
selenium:
image: selenium/standalone-chrome:latest
ports:
- "4444:4444"
I have for instance another docker-compose file, slightly different, for instance:
maven_2:
build: "."
links:
- "selenium_2:selenium_2"
working_dir: /code/
volumes:
- ".:/code"
entrypoint:
- mvn
- verify
- -Dsome.additional.tags=test
- -Dwebdriver.remote.url=http://selenium_2:4444/wd/hub
selenium_2:
image: selenium/standalone-chrome:latest
ports:
- "4444:4444"