I have to maintain a big bunch of repositories with different languages and different language versions.
After some iterations, I came up with a simple idea by using docker for it.
To ease up things for any kind of users who have to deal with this code (even qa), the last iteration is to add a "startdockercontainer.sh" script into the repository.
Following an example script for a php repository.
Given is, that the script is located in <project_root>/bin.
Given is, that the docker file exists in <project_root>/data/docker.
#!/bin/bash
####
# Starts a fitting container and creates image if needed.
#
# @todo
####
# @author stev leibelt <artodeto@bazzline.net>
# @since 2018-05-09
####
PATH_OF_THIS_SCRIPT=$(cd $(dirname "$0"); pwd)
DOCKER_IMAGE_NAME='my_php_application'
DOCKER_IMAGE_TAG='0.1.0'
if ! (docker image ls | grep -q "${DOCKER_IMAGE_NAME}\s\+${DOCKER_IMAGE_TAG}")
then
PATH_TO_THE_DOCKER_SOURCE=$(realpath ${PATH_OF_THIS_SCRIPT}/../data/docker)
echo ":: We have to build the docker container first."
echo ":: Please do the following steps first."
#this is usefull since you have to copy some ssh keys to a path
# or configure some files.
read -p ":: Hit <ENTER> to continue."
docker build -t ${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG} ${PATH_TO_THE_DOCKER_SOURCE}
fi
docker container run --mount type=bind,source="${PATH_OF_THIS_SCRIPT}"/..,target=/application -it ${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG} /bin/ash
And thats it. If the image is not found on the host, we have to setup things and build the image.
Afterwards we start the container and mount the repository code into /applicationof the container.
You want to start blockify-ui or blockify on a pulseaudio served arch linux and get the following error?
amixer: Mixer attach default error: No such file or directory
Traceback (most recent call last):
File "/usr/bin/blockify-ui", line 11, in <module>
load_entry_point('blockify==3.6.3', 'gui_scripts', 'blockify-ui')()
File "/usr/lib/python3.6/site-packages/blockify/gui.py", line 972, in main
_cli = cli.initialize(__doc__)
File "/usr/lib/python3.6/site-packages/blockify/cli.py", line 597, in initialize
cli = Blockify(_blocklist)
File "/usr/lib/python3.6/site-packages/blockify/cli.py", line 63, in __init__
self.channels = self.initialize_channels()
File "/usr/lib/python3.6/site-packages/blockify/cli.py", line 184, in initialize_channels
amixer_output = subprocess.check_output("amixer")
File "/usr/lib/python3.6/subprocess.py", line 336, in check_output
**kwargs).stdout
File "/usr/lib/python3.6/subprocess.py", line 418, in run
output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command 'amixer' returned non-zero exit status 1.
Try to call "amixer" first and check the output. The chance is high that it will be something like the follow:
amixer: Mixer attach default error: No such file or directory
How to fix this?
Install the following tools:
* extra/pulseaudio-alsa
* extra/alsa-utils
* extra/alsa-plugins
* extra/alsa-lib
After that, amixer should output something meaningful and blockify should work as expected.
The value of an auto increment column is set back to zero when you are having an empty table and restarting the MySQL DBMS.
We run into this issue by using the auto increment value as a history id into a second table.
How can you work around this issue?
The easiest way is to order by id descending on the second table or to setup a "start up" shell script that calculates and sets the auto increment value.
You have a Debian 8 installation and get an error like the following when you want to install or update the owncloud client?
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://download.opensuse.org Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4ABE1AC7557BEFF9
W: Failed to fetch http://download.opensuse.org/repositories/isv:/ownCloud:/desktop/Debian_8.0/Release
W: Some index files failed to download. They have been ignored, or old ones used instead.