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Timescale reader
Timescale reader provides message repository implementation for Timescale.
Configuration
The service is configured using the environment variables presented in the following table. Note that any unset variables will be replaced with their default values.
| Variable | Description | Default |
|---|---|---|
| MF_TIMESCALE_READER_LOG_LEVEL | Service log level | debug |
| MF_TIMESCALE_READER_PORT | Service HTTP port | 8180 |
| MF_TIMESCALE_READER_CLIENT_TLS | TLS mode flag | false |
| MF_TIMESCALE_READER_CA_CERTS | Path to trusted CAs in PEM format | |
| MF_TIMESCALE_READER_DB_HOST | Timescale DB host | timescale |
| MF_TIMESCALE_READER_DB_PORT | Timescale DB port | 5432 |
| MF_TIMESCALE_READER_DB_USER | Timescale user | mainflux |
| MF_TIMESCALE_READER_DB_PASS | Timescale password | mainflux |
| MF_TIMESCALE_READER_DB | Timescale database name | messages |
| MF_TIMESCALE_READER_DB_SSL_MODE | Timescale SSL mode | disabled |
| MF_TIMESCALE_READER_DB_SSL_CERT | Timescale SSL certificate path | "" |
| MF_TIMESCALE_READER_DB_SSL_KEY | Timescale SSL key | "" |
| MF_TIMESCALE_READER_DB_SSL_ROOT_CERT | Timescale SSL root certificate path | "" |
| MF_JAEGER_URL | Jaeger server URL | localhost:6831 |
| MF_THINGS_AUTH_GRPC_URL | Things service Auth gRPC URL | localhost:8183 |
| MF_THINGS_AUTH_GRPC_TIMEOUT | Things service Auth gRPC timeout in seconds | 1s |
Deployment
The service itself is distributed as Docker container. Check the timescale-reader service section in docker-compose to see how service is deployed.
To start the service, execute the following shell script:
# download the latest version of the service
git clone https://github.com/mainflux/mainflux
cd mainflux
# compile the timescale writer
make timescale-writer
# copy binary to bin
make install
# Set the environment variables and run the service
MF_TIMESCALE_READER_LOG_LEVEL=[Service log level] \
MF_TIMESCALE_READER_PORT=[Service HTTP port] \
MF_TIMESCALE_READER_CLIENT_TLS =[TLS mode flag] \
MF_TIMESCALE_READER_CA_CERTS=[Path to trusted CAs in PEM format] \
MF_TIMESCALE_READER_DB_HOST=[Timescale host] \
MF_TIMESCALE_READER_DB_PORT=[Timescale port] \
MF_TIMESCALE_READER_DB_USER=[Timescale user] \
MF_TIMESCALE_READER_DB_PASS=[Timescale password] \
MF_TIMESCALE_READER_DB=[Timescale database name] \
MF_TIMESCALE_READER_DB_SSL_MODE=[Timescale SSL mode] \
MF_TIMESCALE_READER_DB_SSL_CERT=[Timescale SSL cert] \
MF_TIMESCALE_READER_DB_SSL_KEY=[Timescale SSL key] \
MF_TIMESCALE_READER_DB_SSL_ROOT_CERT=[Timescale SSL Root cert] \
MF_JAEGER_URL=[Jaeger server URL] \
MF_THINGS_AUTH_GRPC_URL=[Things service Auth GRPC URL] \
MF_THINGS_AUTH_GRPC_TIMEOUT=[Things service Auth gRPC request timeout in seconds] \
$GOBIN/mainflux-timescale-reader
Usage
Starting service will start consuming normalized messages in SenML format.