PostgreSQL SSL Integration Guide

review the following guide for setting up an integration between litmus edge and a postgresql database using ssl authentication before you begin you will need the following access to a postgresql database that uses ssl authentication the ca certificate and any other required authentication parameters to access the database refer to the following links to learn more postgresql docker image postgresql documentation secure tcp/ip connections with ssl step 1 add device follow the steps to connect a device docid 3eyafppweuvmblcey17sq the device will be used to store tags that will be eventually used to create outbound topics in the connector make sure to select the enable data store checkbox step 2 add tags after connecting the device in litmus edge, you can add tags docid 8se7z3pmrfwl1nmzcwalx to the device create tags that you want to use to create outbound topics for the connector step 3 add the db postgresql ssl connector follow the steps to add a connector docid\ ogw7fkqbwidbabn4wl5rr and select the db postgresql ssl provider configure the following parameters name enter a name for the connector hostname enter the hostname for the postgresql database port the postgresql server port the default value is 5432 ssl mode select the ssl mode (require, verify ca, verify full) ca certificate paste or upload the ca certificate associated with the database certificate paste or upload the ssl certificate private key enter or paste the ssl private key username enter the appropriate username password enter the password for the username database enter the database name table enter the table name show mapping if you want to send data to a custom table, select this check box and unselect create table see work with tables in sql connectors (create table and show mapping) docid\ g834 z 0m5fp7j6p6pzwo to learn more to add key/value pairs for the custom table, see work with tables in sql connectors (create table and show mapping) docid\ g834 z 0m5fp7j6p6pzwo create table if you want to send data to an existing table in the default format, or you want to create a new table in the default format, select this checkbox and unselect show mapping see work with tables in sql connectors (create table and show mapping) docid\ g834 z 0m5fp7j6p6pzwo to learn more commit timeout enter the transaction commit timeout in (ms) max transaction size enter the maximum number of messages before a transaction is committed, regardless of timeout parameter bulk insert count to enable this option, enter the number of messages to group together and send as one bulk insert statement enabling this option can improve how quickly data is processed when dealing with high volumes of tags throttling limit the maximum number of messages per second to be processed the default value is zero, which means that there is no limit persistent storage when enabled, this will cause messages to undergo a store and forward procedure messages will be stored within litmus edge when cloud providers are online queue mode select the queue mode as lifo (last in first out) or fifo (first in first out) selecting lifo means that the last data entry is processed first, and selecting fifo means the first data entry is processed first step 4 enable the connector after adding the connector, click the toggle in the connector tile to enable it if you see a failed status, you can review the manage connectors docid 3u7jzldinehy8shvifd d and relevant error messages step 5 create topics for connector you will now need to import the tags created in step 2 as topics for the postgresql connector the topics will be created as outbound topics to create outbound topics click the connector tile the connector dashboard appears click the topics tab click the import from devicehub tags icon the devicehub import dialog box appears select all the tags to import and click import after adding all required topics, navigate to the integration overview page and ensure the connector is not disabled and still shows a connected status step 6 enable topics ensure the topics you imported are enabled by returning to the topics tab and clicking the enable all topics icon step 7 make postgresql queries you can now verify that you can view data in the postgresql database update the credentials, database name, and table name to your specific configurations to make postgresql queries from the postgresql terminal window, enter psql h locahost u postgres and press enter if you configured a different username, replace postgres the psql (9 6 5) version number appears enter \l and press enter the list of databases appears in the console enter \c postgres and press enter you are now connected to database "db example" as user "postgres" appears enter \dt and press enter the list of relations appears showing the devicehub schema enter \d devicehub and press enter the public devicehub table appears enter select from devicehub; and press enter the data for the devicehub table appears