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samba-mirror/selftest/ns/nsenter-helper.sh

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selftest: Add helper scripts for accessing the testenv namespace This patch adds some helper scripts that make talking to a given testenv's namespace slightly easier. One of the really cool things about namespaces is you can run multiple different programs that can all talk to the testenv DC. However, the command to do this is a bit unweildly, it's based on PID so it changes everytime you start up a testenv, and you loose all the environment variables that selftest normally sets up. This patch adds a couple of helper scripts: - nsenter-helper.sh: this takes the variables defined in an exports_file and exports them all. It prints some basic help and then starts a new shell session (this whole script gets run in the new namespace). Essentially this achieves something similar to the legacy selftest-vars.sh script (except this one actually works). - mk_nsenter.sh: this generates a simple wrapper script that'll run nsenter and then call nsenter-helper.sh. A separate wrapper script gets created for each testenv. E.g. to run it, just go: ./st/ad_dc/nsenter.sh This is a wrapper for a more complicated command underneath like: nsenter -t 437353 --net --user --preserve-credentials \ /home/timbeale/code/samba/selftest/ns/nsenter-helper.sh \ /home/timbeale/code/samba/st/ad_dc/exports.sh Signed-off-by: Tim Beale <timbeale@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-03-28 17:40:46 +13:00
#!/bin/sh
#
# Helper script that gets run with nsenter to manually setup a secondary shell
# session to a given namespace testenv. This basically just sets up the same
# environment variables as you normally get with selftest, for convenience.
selftest: Reformat shell scripts shfmt -f selftest/ | xargs shfmt -w -p -i 0 -fn Signed-off-by: Andreas Schneider <asn@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2022-02-21 14:06:36 +01:00
if [ $# -lt 1 ]; then
echo "Usage: $0 <exports-file>"
exit 1
selftest: Add helper scripts for accessing the testenv namespace This patch adds some helper scripts that make talking to a given testenv's namespace slightly easier. One of the really cool things about namespaces is you can run multiple different programs that can all talk to the testenv DC. However, the command to do this is a bit unweildly, it's based on PID so it changes everytime you start up a testenv, and you loose all the environment variables that selftest normally sets up. This patch adds a couple of helper scripts: - nsenter-helper.sh: this takes the variables defined in an exports_file and exports them all. It prints some basic help and then starts a new shell session (this whole script gets run in the new namespace). Essentially this achieves something similar to the legacy selftest-vars.sh script (except this one actually works). - mk_nsenter.sh: this generates a simple wrapper script that'll run nsenter and then call nsenter-helper.sh. A separate wrapper script gets created for each testenv. E.g. to run it, just go: ./st/ad_dc/nsenter.sh This is a wrapper for a more complicated command underneath like: nsenter -t 437353 --net --user --preserve-credentials \ /home/timbeale/code/samba/selftest/ns/nsenter-helper.sh \ /home/timbeale/code/samba/st/ad_dc/exports.sh Signed-off-by: Tim Beale <timbeale@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-03-28 17:40:46 +13:00
fi
# we get passed a exports file with all the environment variables defined
exports_file=$1
# read the exports file so the new shell has appropriate variables setup
# (we export rather than sourcing here so they get inherited by the subshell)
selftest: Reformat shell scripts shfmt -f selftest/ | xargs shfmt -w -p -i 0 -fn Signed-off-by: Andreas Schneider <asn@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2022-02-21 14:06:36 +01:00
while read -r line; do
export $line
# dump them for the user too
echo $line
done <$exports_file
selftest: Add helper scripts for accessing the testenv namespace This patch adds some helper scripts that make talking to a given testenv's namespace slightly easier. One of the really cool things about namespaces is you can run multiple different programs that can all talk to the testenv DC. However, the command to do this is a bit unweildly, it's based on PID so it changes everytime you start up a testenv, and you loose all the environment variables that selftest normally sets up. This patch adds a couple of helper scripts: - nsenter-helper.sh: this takes the variables defined in an exports_file and exports them all. It prints some basic help and then starts a new shell session (this whole script gets run in the new namespace). Essentially this achieves something similar to the legacy selftest-vars.sh script (except this one actually works). - mk_nsenter.sh: this generates a simple wrapper script that'll run nsenter and then call nsenter-helper.sh. A separate wrapper script gets created for each testenv. E.g. to run it, just go: ./st/ad_dc/nsenter.sh This is a wrapper for a more complicated command underneath like: nsenter -t 437353 --net --user --preserve-credentials \ /home/timbeale/code/samba/selftest/ns/nsenter-helper.sh \ /home/timbeale/code/samba/st/ad_dc/exports.sh Signed-off-by: Tim Beale <timbeale@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-03-28 17:40:46 +13:00
echo ""
echo "Entered $NETBIOSNAME namespace, with above variables defined."
echo "Use CTRL+D or exit to leave the namespace."
echo ""
# start a shell session in the new namespace
$SHELL
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