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[VOQ][saidump] Install rdbtools into the docker base related containers. #16466

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Nov 8, 2023
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[VOQ][saidump] Install rdbtools into the docker base related containers. #16466

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* [saidump]
JunhongMao Sep 1, 2023
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* [saidump]
JunhongMao Sep 6, 2023
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https://github.com/sonic-net/sonic-buildimage/pull/16466 fix based on…
JunhongMao Sep 19, 2023
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Merge remote-tracking branch 'upstream/master'
JunhongMao Sep 27, 2023
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https://github.com/sonic-net/sonic-buildimage/pull/16466 fixing based…
JunhongMao Sep 27, 2023
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https://github.com/sonic-net/sonic-buildimage/pull/16466 fixing based…
JunhongMao Sep 30, 2023
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https://github.com/sonic-net/sonic-buildimage/pull/16466 fixing based…
JunhongMao Oct 2, 2023
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Merge remote-tracking branch 'upstream/master'
JunhongMao Oct 3, 2023
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Merge remote-tracking branch 'upstream/master'
JunhongMao Oct 12, 2023
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To process the review comment: https://github.com/sonic-net/sonic-bui…
JunhongMao Oct 27, 2023
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16 changes: 16 additions & 0 deletions build_debian.sh
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Expand Up @@ -729,6 +729,22 @@ SONIC_VERSION_CACHE=${SONIC_VERSION_CACHE} \
DBGOPT="${DBGOPT}" \
scripts/collect_host_image_version_files.sh $CONFIGURED_ARCH $IMAGE_DISTRO $TARGET_PATH $FILESYSTEM_ROOT

# Install libc6-dev and python3-dev for compiling python-lzf
sudo LANG=C chroot $FILESYSTEM_ROOT apt-get -y install libc6-dev python3-dev

# Install python-lzf
sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT pip3 install 'python-lzf==0.2.4'

# Install rdbtools
sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT pip3 install 'rdbtools==0.1.15'

# Uninstall libc6-dev and python3-dev for compiling python-lzf
sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y remove libc6-dev
sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y remove python3-dev
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## Copy saidump.sh
sudo cp ./files/scripts/saidump.sh $FILESYSTEM_ROOT/usr/local/bin/saidump.sh
sudo chmod +x $FILESYSTEM_ROOT/usr/local/bin/saidump.sh
# Remove GCC
sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y remove gcc

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39 changes: 39 additions & 0 deletions files/scripts/saidump.sh
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@@ -0,0 +1,39 @@
#!/bin/bash
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please move this file to syncd/scripts

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@JunhongMao JunhongMao Sep 13, 2023 •
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Hi Lguohan, there is an issue that's hard for putting saidump.sh in the syncd docker. Because the below command is not available inside the syncd docker due to the isolation between docker containers. I.e., the dump.rdb generated by the Redis save is invisible in the syncd container. So, one reasonable solution is to be leaving it in the host. The host has access to operate the dump.rdb.

  debug "saidump.sh: [2] Move dump.rdb to /var/run/redis$1/ in container database$1."
  docker exec database$1 sh -c "mv /var/lib/redis/dump.rdb /var/run/redis$1/"

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@lguohan , please help to review it again. Thanks.

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thanks for the explanation. I feel we should still move this saidump.sh to syncd docker, to address the problem you listed, it is better to mount a shared folder between database docker and syncd docker, so that you can see the rdb file in syncd docker once dumped.

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Thanks for your comments! I will fix it.

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i should have be more clear. when i say syncd docker, i really means sairedis repo, so that saidump.sh will be part of the sairedis package.

set -e

function debug()
{
/usr/bin/logger "$1"
}

save_saidump_by_rdb() {
debug "saidump.sh: [1] sonic-db-cli -n asic$1 SAVE."
sudo sonic-db-cli -n asic$1 SAVE > /dev/null
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this command sonic-db-cli -n asic$1 may not work for single asic linecard?

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@JunhongMao JunhongMao Sep 20, 2023 •
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Fix it.

debug "saidump.sh: [2] Move dump.rdb to /var/run/redis$1/ in container database$1."
docker exec database$1 sh -c "mv /var/lib/redis/dump.rdb /var/run/redis$1/"
debug "saidump.sh: [3] Run rdb command to convert the dump files into JSON files."
sudo python /usr/local/bin/rdb --command json /var/run/redis$1/dump.rdb | sudo tee /var/run/redis$1/dump.json > /dev/null
debug "saidump.sh: [4] Run saidump -r to update the JSON files' format as same as the saidump before. Then we can get the saidump's result in standard output."
docker exec syncd$1 sh -c "saidump -r /var/run/redis$1/dump.json"
debug "saidump.sh: [5] Clear temporary files."
sudo rm -f /var/run/redis$1/dump.rdb
sudo rm -f /var/run/redis$1/dump.json
}

NUM_ASICS=`python -c 'from sonic_py_common.multi_asic import get_num_asics; print(get_num_asics())'`


if (( $# == 0 && $NUM_ASICS == 1 )); then
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there are sudo statements in save_saidump_by_rdb. When a user with only Read-only privileges executes show tech-support these will fail?

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@JunhongMao JunhongMao Sep 20, 2023 •
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The command "show techsupport" calls "sudo generate_dump -v -t 5".
By checking the below related commands' mode bits, we can see they are all have "other user executable bit".
And I run the command "show techsupport" in a user with only Read-only privileges, then get correct saidump results.

$ ls `which generate_dump` -l
-rwxr-xr-x 1 root root 66028 Sep 19 14:32 /usr/local/bin/generate_dump
$ ls `which saidump.sh` -l
-rwxr-xr-x 1 root root 1752 Sep 21 15:28 /usr/local/bin/saidump.sh
$ ls `which rm` -l
-rwxr-xr-x 1 root root 72704 Sep 24  2020 /usr/bin/rm

So, finally, remove all sudo for concise.

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@arlakshm , please review, thanks.

save_saidump_by_rdb
#validate if the argument is an integer
elif [[ "$1" =~ [0-9]+ ]] && (( $# == 1 && $1 >= 0 && $1 < $NUM_ASICS )) ; then
save_saidump_by_rdb $1
else
echo "The number of ASICS is $NUM_ASICS."
echo "Usage:"
echo "saidump.sh <ASIC Index> or NULL"
echo " <ASIC Index> should be 0 ~ NUM_ASICS."
echo " E.g. \"saidump.sh 1\" is OK when NUMASICS is 2."
echo " NULL"
echo " E.g. \"saidump.sh\" is OK when NUMASICS is 1."
fi
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