docker-entrypoint.sh

#!/bin/bash

# set -e stops the execution of a script if a command or pipeline has an error
set -e

JQ_FILTERS="."

if [[ "$HOST_NAME" ]]; then
    JQ_FILTERS="$JQ_FILTERS | .restEndpoints[\"$HOST_NAME\"]=\"us-east-1\""
    echo "Host name has been modified to $HOST_NAME"
    echo "Note: In your /etc/hosts file on Linux, OS X, or Unix with root permissions, make sure to associate 127.0.0.1 with $HOST_NAME"
fi

if [[ "$LOG_LEVEL" ]]; then
    if [[ "$LOG_LEVEL" == "info" || "$LOG_LEVEL" == "debug" || "$LOG_LEVEL" == "trace" ]]; then
        JQ_FILTERS="$JQ_FILTERS | .log.logLevel=\"$LOG_LEVEL\""
        echo "Log level has been modified to $LOG_LEVEL"
    else
        echo "The log level you provided is incorrect (info/debug/trace)"
    fi
fi

if [[ "$SSL" ]]; then
    if [[ -z "$HOST_NAME" ]]; then
        echo "WARNING! No HOST_NAME has been provided"
    fi
    # This condition makes sure that the certificates are not generated twice. (for docker restart)
    if [ ! -f ./ca.key ] || [ ! -f ./ca.crt ] || [ ! -f ./server.key ] || [ ! -f ./server.crt ] ; then
        ## Generate SSL key and certificates
        # Generate a private key for your CSR
        openssl genrsa -out ca.key 2048
        # Generate a self signed certificate for your local Certificate Authority
        openssl req -new -x509 -extensions v3_ca -key ca.key -out ca.crt -days 99999  -subj "/C=US/ST=Country/L=City/O=Organization/CN=$SSL"
        # Generate a key for S3 Server
        openssl genrsa -out server.key 2048
        # Generate a Certificate Signing Request for S3 Server
        openssl req -new -key server.key -out server.csr -subj "/C=US/ST=Country/L=City/O=Organization/CN=*.$SSL"
        # Generate a local-CA-signed certificate for S3 Server
        openssl x509 -req -in server.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out server.crt -days 99999 -sha256
    fi
    ## Update S3Server config.json
    # This condition makes sure that certFilePaths section is not added twice. (for docker restart)
    if ! grep -q "certFilePaths" ./config.json; then
        JQ_FILTERS="$JQ_FILTERS | .certFilePaths= { \"key\": \".\/server.key\", \"cert\": \".\/server.crt\", \"ca\": \".\/ca.crt\" }"
    fi
fi

if [[ "$S3DATA" == "multiple" ]]; then
    export S3DATA="$S3DATA"
fi

if [[ "$LISTEN_ADDR" ]]; then
    JQ_FILTERS="$JQ_FILTERS | .metadataDaemon.bindAddress=\"$LISTEN_ADDR\""
    JQ_FILTERS="$JQ_FILTERS | .dataDaemon.bindAddress=\"$LISTEN_ADDR\""
    JQ_FILTERS="$JQ_FILTERS | .listenOn=[\"$LISTEN_ADDR:8000\"]"
fi

if [[ "$DATA_HOST" ]]; then
    JQ_FILTERS="$JQ_FILTERS | .dataClient.host=\"$DATA_HOST\""
fi

if [[ "$METADATA_HOST" ]]; then
    JQ_FILTERS="$JQ_FILTERS | .metadataClient.host=\"$METADATA_HOST\""
fi

if [[ "$REDIS_HOST" ]]; then
    JQ_FILTERS="$JQ_FILTERS | .localCache.host=\"$REDIS_HOST\""
    JQ_FILTERS="$JQ_FILTERS | .localCache.port=6379"
fi

if [[ "$REDIS_PORT" ]]; then
    JQ_FILTERS="$JQ_FILTERS | .localCache.port=$REDIS_PORT"
fi

jq "$JQ_FILTERS" config.json > config.json.tmp
mv config.json.tmp config.json

exec "$@"