I have a database for my app and I want to create it in run time docker
I have a file CreateDB.sh and it creates all the tables and stored procedure that I want.
I tried this :
FROM mcr.microsoft.com/mssql/server
ENV ACCEPT_EULA=Y \
SA_PASSWORD=qwe123QWE
USER root
RUN mkdir /home/db
COPY ./db /home/db
RUN chmod +x /home/db/DbScriptLinux.sh
WORKDIR /home/db/
CMD ["/bin/bash", "/home/db/DbScriptLinux.sh"]
but it returns an error :
LoginTimeout
is there any way to run my script after all services (sql-server) start?
You can use an if statement, for example, RUN if [[ -z "$arg" ]] ; then echo Argument not provided ; else echo Argument is $arg ; fi
Another way would be to use command1 && command2 so if the command 1 is successfull, then command 2 would run afterwards.
Your last line CMD ["/bin/bash", "/home/db/DbScriptLinux.sh"] if this is to start the database every time you start the container, as your default command to run, then should be alright, otherwise it would be better to use the RUN command.
Related
I have two tasks in task group
1) a db task to bring up a db and
2) the app that needs the db to be up.
Both start in parallel and the db tasks takes a lil bit time but by then the app recognizes that db is not up and kills the db task. Any solutions? Please advise.
It's somewhat common to have an entrypoint script that checks if the db is healthy. Here's a script i've used before:
#!/bin/sh
set -e
cmd="$*"
postgres_ready() {
if test -z "${NO_DB}"
then
PGPASSWORD="${RDS_PASSWORD}" psql -h "${RDS_HOSTNAME}" -U "${RDS_USERNAME}" -d "${RDS_DB_NAME}" -c '\l'
return $?
else
echo "NO_DB Postgres will pretend to be up"
return 0
fi
}
until postgres_ready
do
>&2 echo "Postgres is unavailable - sleeping"
sleep 1
done
>&2 echo "Postgres is up - continuing..."
exec "${cmd}"
You could save it as entrypoint.sh and run it with your application start script as the argument. eg: entrypoint.sh python main.py
I have a folder with 55 .sql files, SQL scripts.
Each file consists of 10000 insert statements. I'm using this command to run each file:
C:\sqlcmd -S . -d Minuf_Customers_July -i C:\ACL\MyScript3.sql
And I need to do it for MyScript1 , MyScript2.. to MyScript54.
Is there a way to loop through all the commands in the command prompt?
But it is important! that the each row will run separately because otherwise it will throw an "out of memory" error.
The DOS command for is your friend.
for %f in (*.sql) do sqlcmd -S . -d Minuf_Customers_July -i %f
The command help for gives details of various options.
I would like to create multiple empty files using tcsh, similar to the command:
touch {0..999}.txt
no bash installed.
%echo $SHELL
%/bin/tcsh
If possible, not using script but a terminal command
You can use seq's formatting option and avoid the loop by passing multiple args to touch:
touch `seq -f %.0f.txt 1 999`
I've just created a simple script that does it:
file name: script
\#!/bin/tcsh
set j = 1
while ($j <= 10000)
touch $j.txt
# j++
end
changed the permissions for the script to +x :
chmod +x script
and executed :
./script
My nagios bash script works fine from the client's command line.
When I execute the same script through check_nrpe from the nagios server it returns the following message "CHECK_NRPE: No output returned from daemon."
Seems like a command in the bash script is not being executed.
arrVars=(`/usr/bin/ipmitool sensor | grep "<System sensor>"`)
#echo "Hello World!!"
myOPString=""
<Process array and determine string to echo along with exit code>
echo $myOPString
if [[ $flag == "False" ]]; then
exit 1
else
exit 0
fi
"Hello World" shows up on the nagios monitoring screen if I uncomment the echo statement.
I am new to linux but seems like the nagios user isn't able to execute ipmitool
arrVars=(`/usr/bin/ipmitool sensor | grep "<System sensor>"`)
Check the output of the above, You can echo it and check for the values. If it still does not work use another script to be called by this to get the output and assign it to a variable
exit 1
This refers to the Severity , So you would have to define different conditions where the severity changes
Add this line to the sudoers
nagios ALL=(root) NOPASSWD: /usr/bin/ipmitool
Then use "sudo /usr/bin/ipmitool" in your script
I want to create a file in /usr/share/applications/ and put a string on it.
What I have so far:
sudo touch /usr/share/applications/test.desktop
dentry="testing"
sudo echo $dentry >> /usr/share/applications/test.desktop
But this raise an error Permission Denied. What should I do to make it works?
You should create the file using your own pernissions, then sudo cp it into place.
The reason the second command doesn't work is that the redirection is set up by your shell, before sudo even runs. You could work around this by running sudo sh -c 'echo stuff >>file' but this is vastly more risk-prone than a simple sudo cp, and additionally has a race condition (if you run two concurrent instances of this script, they could end up writing the information twice to the file).