Update docker image and instructions (#2000)

packages/docs/getting-started/running-attestation-service.md

@@ -27,7 +27,9 @@ The service needs the following environment variables:
 A part of that we are going to setup the following environment variable about the Attestation Service Docker image:
 
 ```bash
-export CELO_IMAGE_ATTESTATION="us.gcr.io/celo-testnet/celo-monorepo:attestation-service-708ea8b24736a755c4dd3792e8973a6f0bf92b1f91edceb8e0b603ad66f2d70c"
+export CELO_IMAGE_ATTESTATION="us.gcr.io/celo-testnet/celo-monorepo:attestation-service-8f87dda20f1854c9532a5cbcf8ff556f48dff413"
+# if you followed the instruction of setting up the attestation signer
+export CELO_PROVIDER=http://localhost:8545
 ```
 
 ## Sms Providers
@@ -74,12 +76,21 @@ export DATABASE_URL="mysql://user:password@mysql.example.com:3306/attestation-se
 export DATABASE_URL="postgres://user:password@postgres.example.com:5432/attestation-service"
 ```
 
+**Example of setting up a local postgres database on Ubuntu**:
+
+```bash
+apt install postgres
+sudo -u postgres createdb attestation-service
+sudo -u postgres psql -c "ALTER USER postgres PASSWORD '<DATABASE_PASSWORD>';"
+export DATABASE_URL="postgres://postgres:<DATABASE_PASSWORD>@localhost:5432/attestation-service"
+```
+
 ## Executing the Attestation Service
 
-The following command for running the Attestation Service is using Nexmo, but you can adapt for using Twilio easily:
+The following command for running the Attestation Service is using Twilio and uses `--network host` to access a local database (only works on Linux):
 
 ```bash
-docker run --name celo-attestation-service -d --restart always --entrypoint /bin/bash -e ATTESTATION_SIGNER_ADDRESS=$ATTESTATION_SIGNER_ADDRESS -e CELO_VALIDATOR_ADDRESS=0x$CELO_VALIDATOR_ADDRESS -e CELO_PROVIDER=$CELO_PROVIDER -e DATABASE_URL=$DATABASE_URL -e SMS_PROVIDERS=nexmo -e NEXMO_KEY=$NEXMO_KEY -e NEXMO_SECRET=$NEXMO_SECRET -e NEXMO_BLACKLIST=$NEXMO_BLACKLIST -p 3000:80 $CELO_IMAGE_ATTESTATION -c " cd /celo-monorepo/packages/attestation-service && yarn run db:migrate && yarn start "
+docker run --name celo-attestation-service --restart always --entrypoint /bin/bash --network host -e ATTESTATION_SIGNER_ADDRESS=$ATTESTATION_SIGNER_ADDRESS -e CELO_VALIDATOR_ADDRESS=0x$CELO_VALIDATOR_ADDRESS -e CELO_PROVIDER=$CELO_PROVIDER -e DATABASE_URL=$DATABASE_URL -e SMS_PROVIDERS=twilio -e TWILIO_MESSAGING_SERVICE_SID=$TWILIO_MESSAGING_SERVICE_SID -e TWILIO_ACCOUNT_SID=$TWILIO_ACCOUNT_SID -e TWILIO_BLACKLIST=$TWILIO_BLACKLIST -e TWILIO_AUTH_TOKEN=$TWILIO_AUTH_TOKEN -e PORT=80 -p 80:80 $CELO_IMAGE_ATTESTATION -c " cd /celo-monorepo/packages/attestation-service && yarn run db:migrate && yarn start "
 ```
 
 ## Registering the Attestation Service