Thank you so much for all of the help. This is really interesting and a big
help.
I think it is very interesting, because I believe the result I want from
your scripts is the "With quotes" option, but that is what I'm already
doing and SSH does not like it for some reason. It also feels like defining
the variable in the same script is getting treated differently than passing
them into another script, but that could be crazy.
Here is an example of what I'm doing in the wrapper.sh file that I've been
using to test and find a solution.
#!/bin/bash -x
die() {
echo >&2 "$@"
exit 1
}
# Get HOST Name for Deployment
while getopts ":h:" opt; do
case ${opt} in
h)
HOSTS=$OPTARG
;;
\?)
die "Invalid option: -$OPTARG"
;;
:)
die "Invalid option: $OPTARG requires an argument"
;;
esac
done
shift $((OPTIND - 1))
if [[ -z $HOSTS ]] ; then
die "BAD ARGUMENTS: Host was not supplied"
fi
OIFS=$IFS
IFS=";"
for HOST in $HOSTS; do
SSH_OPTS="-o StrictHostKeyChecking=no -i /path/to/.ssh/my.pem"
ssh -v "$SSH_OPTS" my-user@$HOST "sudo sendmail [email protected] <
email.txt"
if [ $? -ne 0 ]; then
die "Stopping Tomcat failed!"
fi
done
IFS=$OIFS
exit 0
On Monday, January 6, 2020 at 11:53:30 AM UTC-5, Aravind SV wrote:
>
> Hello Chris,
>
> I figured you were using it like you showed. You're also right that all of
> this is behavior of bash, rather than GoCD.
>
> Your JSON is equivalent to calling a script such as this:
> ------------------------------
>
> #!/bin/bash
>
> export SSH_HOSTS="-o UserKnownHostsFile=/dev/null -o
> StrictHostKeyChecking=no -i /path/to/.ssh/my.pem"
>
> bash -c './src/main/config/scripts/wrapper.sh -h ${HOSTS_INT}'
> ------------------------------
>
> You should see whatever behavior you're seeing when run through GoCD.
>
>
>
> I would suggest using a script such as this one, to understand the effect
> of quotes and eval, etc.
> ------------------------------
>
> #!/bin/bash
>
> echo "I got: $# arguments"
>
> for idx in `seq "$#"`; do
>
> echo "$idx: $1"
>
> shift
>
> done
> ------------------------------
>
>
> For instance, use it like this:
> ------------------------------
>
> #!/bin/bash
>
> SSH_USER="ssh-user"
>
> HOST="ssh-host"
>
> SSH_OPTS="-o StrictHostKeyChecking=no -i ~/.ssh/my.pem"
>
> echo "Without quotes:"
>
> ./how-many-args.sh ${SSH_OPTS} ${SSH_USER}@${HOST} "sudo /sbin/service
> tomcat-${ENV} stop"
>
> echo
>
> echo "With quotes:"
>
> ./how-many-args.sh "${SSH_OPTS}" ${SSH_USER}@${HOST} "sudo /sbin/service
> tomcat-${ENV} stop"
>
> echo
>
> echo "With eval:"
>
> eval ./how-many-args.sh "${SSH_OPTS}" ${SSH_USER}@${HOST} "sudo
> /sbin/service tomcat-${ENV} stop"
>
> echo
>
> echo "With eval and protection for the last arg:"
>
> eval ./how-many-args.sh "${SSH_OPTS}" ${SSH_USER}@${HOST} '"sudo
> /sbin/service tomcat-${ENV} stop"'
>
> echo
> ------------------------------
>
>
> With the right usage of eval and the right number of quotes, you should be
> able to get what you are looking for, but it can be tricky. :) I would
> help, but I don't know what your wrapper.sh contains.
>
> Cheers,
> Aravind
>
>
> On Mon, Jan 6, 2020 at 4:09 PM Chris Flynn <[email protected] <javascript:>>
> wrote:
>
>> Hi Aravind,
>>
>> Thank you very much for the response. Hopefully the below information
>> will help. Let me know if you need more or something else.
>>
>> I've been doing some more testing and believe I can reproduce the issue
>> outside of GoCD with a script that defines the SSH_OPTS variable with
>> values that have a space and then using that in my SSH command in the same
>> script. This must be a known behavior with bash scripts, but I have yet to
>> figure out how to get around it or find much documentation about how others
>> work with this. I feel like this would be a pretty common scenario, but
>> maybe I'm wrong.
>>
>> JSON task...
>> {
>> "command": "bash",
>> "timeout": -1.0,
>> "arguments": [
>> "-c",
>> "./src/main/config/scripts/wrapper.sh -h ${HOSTS_INT}"
>> ],
>> "run_if": "passed",
>> "type": "exec"
>> }
>>
>>
>>
>> Environment Variable
>> {
>> "name": "SSH_OPTS",
>> "value": "-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no
>> -i /path/to/.ssh/my.pem"
>> }
>>
>>
>>
>>
>> On Sunday, January 5, 2020 at 6:03:23 AM UTC-5, Aravind SV wrote:
>>>
>>> Hello Chris,
>>>
>>> On Fri, Jan 03, 2020 at 10:19:59 -0800, Chris Flynn wrote:
>>> > It is definitely only an issue if the pipeline calls the Shell script
>>> > directly. There is no issue if a secondary script is used. Also,
>>> another
>>> > point of information, I'm configuring my pipelines in code as JSON.
>>>
>>> Can you show a relevant snippet of the JSON, to understand how you're
>>> configuring the task (and maybe the env vars)?
>>>
>>> Thanks,
>>> Aravind
>>>
>>> --
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>> .
>>
>
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