use environment variables, correct migrations

docker-compose.yml

···
     image: postgres:15
     restart: unless-stopped
     environment:
-      POSTGRES_USER: xcvr
-      POSTGRES_PASSWORD: secret
-      POSTGRES_DB: xcvrdb
+      POSTGRES_USER: ${POSTGRES_USER}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+      POSTGRES_DB: ${POSTGRES_DB}
     ports:
-      - "15432:5432"
+      - "${POSTGRES_PORT}:5432"
     volumes:
       - dbdata:/var/lib/posgresql/data
 

migratedown

···
 #!/bin/bash
-migrate -path migrations -database "postgres://xcvr:secret@localhost:15432/xcvrdb?sslmode=disable" down
+source .env
+
+migrate -path migrations -database "postgres://$POSTGRES_USER:$POSTGRES_PASSWORD@localhost:$POSTGRES_PORT/$POSTGRES_DB?sslmode=disable" down

migrateup

···
 #!/bin/bash
-migrate -path migrations -database "postgres://xcvr:secret@localhost:15432/xcvrdb?sslmode=disable" up
+source .env
+
+migrate -path migrations -database "postgres://$POSTGRES_USER:$POSTGRES_PASSWORD@localhost:$POSTGRES_PORT/$POSTGRES_DB?sslmode=disable" up

migrations/002_populate.down.sql

···
+DELETE FROM messages;
+DELETE FROM signets;
+DELETE FROM channels;
+DELETE FROM did_handle;
+DELETE FROM profiles;

migrations/002_populate.up.sql

···
+INSERT INTO profiles (did, display_name, default_nick, status, avatar_cid, avatar_mime, color, uri, cid)
+VALUES
+('did:example:alice', 'Alice Example', 'alice', 'Chilling', 'bafybeib6...', 'image/png', 16711680, 'at://did:example:alice/app.bsky.actor.profile/self', 'cid1'),
+('did:example:bob', 'Bob Example', 'bobby', 'Working hard', 'bafybeib7...', 'image/jpeg', 65280, 'at://did:example:bob/app.bsky.actor.profile/self', 'cid2');
+
+INSERT INTO did_handle (handle, did)
+VALUES
+('alice.com', 'did:example:alice'),
+('bob.net', 'did:example:bob');
+
+INSERT INTO channels (uri, cid, did, host, title, topic, created_at)
+VALUES
+('at://did:example:alice/org.xcvr.channel/general', 'chanCid1', 'did:example:alice', 'alice.com', 'General Chat', 'All-purpose chatter', now() - interval '2 days'),
+('at://did:example:bob/org.xcvr.channel/help', 'chanCid2', 'did:example:bob', 'bob.net', 'Help Channel', 'Support and help', now() - interval '1 day');
+
+INSERT INTO signets (uri, did, channel_uri, message_id, cid)
+VALUES
+('at://did:example:alice/org.xcvr.lrc/signet1', 'did:example:alice', 'at://did:example:alice/org.xcvr.channel/general', 1, 'signetCid1'),
+('at://did:example:bob/org.xcvr.lrc/signet2', 'did:example:bob', 'at://did:example:bob/org.xcvr.channel/help', 2, 'signetCid2');
+
+INSERT INTO messages (uri, did, signet_uri, body, nick, color, cid)
+VALUES
+('at://did:example:alice/org.xcvr.lrc.message/msg1', 'did:example:alice', 'at://did:example:alice/org.xcvr.lrc/signet1', 'Hey, welcome to the general chat!', 'alice', 16711680, 'msgCid1'),
+('at://did:example:bob/org.xcvr.lrc.message/msg2', 'did:example:bob', 'at://did:example:bob/org.xcvr.lrc/signet2', 'How can I help you today?', 'bobby', 65280, 'msgCid2');

psql

···
 #!/bin/bash
-docker exec -it xcvr-backend-db-1 psql -U xcvr -d xcvrdb
+source .env
+
+docker exec -it xcvr-backend-db-1 psql -U $POSTGRES_USER -d $POSTGRES_DB