83 lines
3.4 KiB
Markdown
83 lines
3.4 KiB
Markdown
# MongoDB reader
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MongoDB reader provides message repository implementation for MongoDB.
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## Configuration
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The service is configured using the environment variables presented in the
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following table. Note that any unset variables will be replaced with their
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default values.
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| Variable | Description | Default |
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|--------------------------------|------------------------------------------------|----------------|
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| MF_THINGS_URL | Things service URL | localhost:8181 |
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| MF_MONGO_READER_PORT | Service HTTP port | 8180 |
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| MF_MONGO_READER_DB_NAME | MongoDB database name | mainflux |
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| MF_MONGO_READER_DB_HOST | MongoDB database host | localhost |
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| MF_MONGO_READER_DB_PORT | MongoDB database port | 27017 |
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| MF_MONGO_READER_CLIENT_TLS | Flag that indicates if TLS should be turned on | false |
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| MF_MONGO_READER_CA_CERTS | Path to trusted CAs in PEM format | |
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| MF_JAEGER_URL | Jaeger server URL | localhost:6831 |
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| MF_MONGO_READER_THINGS_TIMEOUT | Things gRPC request timeout in seconds | 1 |
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## Deployment
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```yaml
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version: "3.7"
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mongodb-reader:
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image: mainflux/mongodb-reader:[version]
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container_name: [instance name]
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expose:
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- [Service HTTP port]
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restart: on-failure
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environment:
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MF_THINGS_URL: [Things service URL]
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MF_MONGO_READER_PORT: [Service HTTP port]
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MF_MONGO_READER_DB_NAME: [MongoDB name]
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MF_MONGO_READER_DB_HOST: [MongoDB host]
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MF_MONGO_READER_DB_PORT: [MongoDB port]
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MF_MONGO_READER_CLIENT_TLS: [Flag that indicates if TLS should be turned on]
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MF_MONGO_READER_CA_CERTS: [Path to trusted CAs in PEM format]
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MF_JAEGER_URL: [Jaeger server URL]
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MF_MONGO_READER_THINGS_TIMEOUT: [Things gRPC request timeout in seconds]
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ports:
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- [host machine port]:[configured HTTP port]
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```
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To start the service, execute the following shell script:
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```bash
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# download the latest version of the service
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git clone https://github.com/mainflux/mainflux
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cd mainflux
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# compile the mongodb reader
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make mongodb-reader
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# copy binary to bin
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make install
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# Set the environment variables and run the service
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MF_THINGS_URL=[Things service URL] MF_MONGO_READER_PORT=[Service HTTP port] MF_MONGO_READER_DB_NAME=[MongoDB database name] MF_MONGO_READER_DB_HOST=[MongoDB database host] MF_MONGO_READER_DB_PORT=[MongoDB database port] MF_MONGO_READER_CLIENT_TLS=[Flag that indicates if TLS should be turned on] MF_MONGO_READER_CA_CERTS=[Path to trusted CAs in PEM format] MF_JAEGER_URL=[Jaeger server URL] MF_MONGO_READER_THINGS_TIMEOUT=[Things gRPC request timeout in seconds] $GOBIN/mainflux-mongodb-reader
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```
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### Using docker-compose
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This service can be deployed using docker containers. Docker compose file is
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available in `<project_root>/docker/addons/mongodb-reader/docker-compose.yml`.
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In order to run all Mainflux core services, as well as mentioned optional ones,
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execute following command:
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```bash
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docker-compose -f docker/docker-compose.yml up -d
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docker-compose -f docker/addons/mongodb-reader/docker-compose.yml up -d
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```
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## Usage
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Service exposes [HTTP API][doc] for fetching messages.
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[doc]: ../swagger.yml
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