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Don't remove KAFKA_PROPERTIES_FILE; allow user to use mounted file #502

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merged 8 commits into from
Apr 7, 2023
Merged

Don't remove KAFKA_PROPERTIES_FILE; allow user to use mounted file #502

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98f39b3
touch, don't rm, KAFKA_PROPERTIES_FILE
brsolomon-deloitte Apr 6, 2023
69ac5bf
Update kafdrop.sh
brsolomon-deloitte Apr 6, 2023
9f62b6b
Update kafdrop.sh
brsolomon-deloitte Apr 7, 2023
e1c819a
Update kafdrop.sh
brsolomon-deloitte Apr 7, 2023
4e6ffe0
Update README.md
brsolomon-deloitte Apr 7, 2023
4a9a6f0
Update README.md
brsolomon-deloitte Apr 7, 2023
5ffb777
Use elif->touch pattern for all _FILE vars
brsolomon-deloitte Apr 7, 2023
bdd0d2b
Update README.md
brsolomon-deloitte Apr 7, 2023
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21 changes: 21 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -256,6 +256,27 @@ docker run -d --rm -p 9000:9000 \
-e KAFKA_KEYSTORE="$(cat kafka.keystore.jks | base64)" \ # optional
obsidiandynamics/kafdrop
```

Rather than passing `KAFKA_PROPERTIES` as a base64-encoded string, you can also place a pre-populated `KAFKA_PROPERTIES_FILE` into the container:

```sh
cat << EOF > kafka.properties
security.protocol=SASL_SSL
sasl.mechanism=SCRAM-SHA-512
sasl.jaas.config=org.apache.kafka.common.security.scram.ScramLoginModule required username="foo" password="bar"
EOF

docker run -d --rm -p 9000:9000 \
-v $(pwd)/kafka.properties:/tmp/kafka.properties:ro \
-v $(pwd)/kafka.truststore.jks:/tmp/kafka.truststore.jks:ro \
-v $(pwd)/kafka.keystore.jks:/tmp/kafka.keystore.jks:ro \
-e KAFKA_BROKERCONNECT=<host:port,host:port> \
-e KAFKA_PROPERTIES_FILE=/tmp/kafka.properties \
-e KAFKA_TRUSTSTORE_FILE=/tmp/kafka.truststore.jks \ # optional
-e KAFKA_KEYSTORE_FILE=/tmp/kafka.keystore.jks \ # optional
obsidiandynamics/kafdrop
```

#### Environment Variables
##### Basic configuration
|Name |Description
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12 changes: 6 additions & 6 deletions src/main/docker/kafdrop.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -39,24 +39,24 @@ KAFKA_PROPERTIES_FILE=${KAFKA_PROPERTIES_FILE:-kafka.properties}
if [ "$KAFKA_PROPERTIES" != "" ]; then
echo Writing Kafka properties into $KAFKA_PROPERTIES_FILE
echo "$KAFKA_PROPERTIES" | base64 --decode --ignore-garbage > $KAFKA_PROPERTIES_FILE
else
rm $KAFKA_PROPERTIES_FILE |& > /dev/null | true
elif [ ! -f $KAFKA_PROPERTIES_FILE ]; then
touch $KAFKA_PROPERTIES_FILE
fi

KAFKA_TRUSTSTORE_FILE=${KAFKA_TRUSTSTORE_FILE:-kafka.truststore.jks}
if [ "$KAFKA_TRUSTSTORE" != "" ]; then
echo Writing Kafka truststore into $KAFKA_TRUSTSTORE_FILE
echo "$KAFKA_TRUSTSTORE" | base64 --decode --ignore-garbage > $KAFKA_TRUSTSTORE_FILE
else
rm $KAFKA_TRUSTSTORE_FILE |& > /dev/null | true
elif [ ! -f $KAFKA_TRUSTSTORE_FILE ]; then
touch $KAFKA_TRUSTSTORE_FILE
fi

KAFKA_KEYSTORE_FILE=${KAFKA_KEYSTORE_FILE:-kafka.keystore.jks}
if [ "$KAFKA_KEYSTORE" != "" ]; then
echo Writing Kafka keystore into $KAFKA_KEYSTORE_FILE
echo "$KAFKA_KEYSTORE" | base64 --decode --ignore-garbage > $KAFKA_KEYSTORE_FILE
else
rm $KAFKA_KEYSTORE_FILE |& > /dev/null | true
elif [ ! -f $KAFKA_KEYSTORE_FILE ]; then
touch $KAFKA_KEYSTORE_FILE
fi

ARGS="--add-opens=java.base/sun.nio.ch=ALL-UNNAMED -Xss256K \
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