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attempt to convert to ephemoral container #16

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attempt to convert to ephemoral container #16

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29 changes: 18 additions & 11 deletions aggregator-backup/download-aggregator.sh
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Original file line number Diff line number Diff line change
@@ -1,7 +1,6 @@
#!/usr/bin/env bash
#
# This script will use kubectl to copy the aggregator data files to a temporary
# location, then tar the contents and remove the temp directory
# This script will use kubectl to copy the aggregator data files using an ephemeral container

set -eo pipefail

Expand Down Expand Up @@ -35,18 +34,26 @@ if [ "$r" == "${r#[y]}" ]; then
fi

# Grab the Pod Name of the aggregator pod
# If you use zsh and this line isn't working, it is likely due to your partial line response
# and zsh adds a % delimeter to the end. Add the following line to your ~/.zshrc file:
# PROMPT_EOL_MARK=''
podName="$(kubectl get pods -n "$namespace" -l app=aggregator -o jsonpath='{.items[0].metadata.name}')"

# find read db file
readDbFile="$(kubectl exec -c aggregator "$podName" -n "$namespace" -- find /var/configs/waterfowl -type f -name '*.read')"
echo "Found read db file: $readDbFile"
# Use ephemeral container to access and copy the read DB file
echo "Accessing aggregator filesystem using ephemeral container..."
kubectl debug -n "$namespace" "$podName" -it --image=busybox --target=aggregator --share-processes -- /bin/sh -c "
cd /proc/1/root${aggDir}
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Do we know for sure this is always under /proc/1/root ?

@jessegoodier @cliffcolvin

readDbFile=\$(find . -type f -name '*.read')
if [ -z \"\$readDbFile\" ]; then
echo 'Read DB file not found'
exit 1
fi
echo \"Found read db file: \$readDbFile\"
mkdir -p /tmp/$tmpDir
cp \"\$readDbFile\" /tmp/$tmpDir/
echo 'File copied to ephemeral container'
" || { echo "Failed to access or copy file from ephemeral container"; exit 1; }

# Download file from container and store it in the same filename in current directory
echo "Copying aggregator Files from $namespace/$podName:$aggDir to $tmpDir..."
kubectl cp -c aggregator "$namespace"/"$podName":"$readDbFile" ./$tmpDir/"$podName".read
# Copy file from ephemeral container to local machine
echo "Copying file from ephemeral container to local machine..."
kubectl cp -n "$namespace" "$podName":/tmp/$tmpDir ./$tmpDir

# Archive the directory
tar cfz kubecost-aggregator.tar.gz $tmpDir && \
Expand Down