Hera is Data Access Gateway for  databases and is a key enabler for scaling and improving availability databases.
- It Protects the database from resource exhaustion by evicting poorly performing queries,
- Intelligently routes read/write traffic appropriately for better load balancing,
- Improves tolerance to database outages,
- Provides high performance secured connections between applications and Hera
- Provides domain agnostic database sharding for horizontal database scaling.
- Automatic transaction application failover between replica databases
- And many more site resiliency features.

docker run --network host --name mysql-11 -e MYSQL_ROOT_PASSWORD=62-AntHill -d mysql:latest
docker exec -it mysql-11 bash -c 'echo "create database clocschema;" | mysql -u root -h 127.0.0.1 -p62-AntHill'
cd hera/tests/devdocker
mkdir -p src/github.com/paypal/hera
rsync -av --exclude tests/devdocker ../.. src/github.com/paypal/hera
docker build -t hera-oss .
docker run -it --rm --name testRunHeraOss --network host -e password=62-AntHill hera-oss

docker exec -it testRunHeraOss /bin/bash
cd /go/src
go run github.com/paypal/hera/client/gosqldriver/tls/example/sample_main.go

    # the proxy executable
    ln -s $GOPATH/bin/mux .
    # the MySQL worker
    ln -s $GOPATH/bin/mysqlworker mysqlworker
    # to use the Oracle worker use oracleworker instead of mysqlworker

    # create the configuration file with the required configuration
    echo 'bind_ip=127.0.0.1' > hera.txt
    echo 'bind_port=11111' >> hera.txt
    echo 'opscfg.hera.server.max_connections=2' >> hera.txt
    # if using mysql run this
    # echo 'database_type=mysql' >> hera.txt

    # create minimal CAL configuration, needed by ops config
    echo 'cal_pool_name=stage_hera' > cal_client.txt

    # the database user name
    export username='user'
    # the database password
    export password='pass'
    # the data source
    export TWO_TASK='tcp(127.0.0.1:3306)/myschema'
    # for Oracle the datasource can be like '(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=tcp)(HOST=hostname)
    #    (PORT=12345)))(CONNECT_DATA=(SERVICE_NAME=sn)))'.
    # for Oracle only add to LD_LIBRARY_PATH environment variable the path to the shared libraries of the
    #    Oracle instant client

    # start
    ./mux --name hera-test