Add assets microservice base

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

support/timescaledb/999_init.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+psql --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
+    CREATE TYPE CLASS AS ENUM ('us_equity', 'crypto', 'unknown');
+
+    CREATE TYPE EXCHANGE AS ENUM (
+        'AMEX',
+        'ARCA',
+        'BATS',
+        'NASDAQ',
+        'NYSE',
+        'NYSEARCA',
+        'OTC',
+        'unknown'
+    );
+
+    CREATE TABLE assets (
+        id UUID PRIMARY KEY,
+        symbol VARCHAR(20) NOT NULL UNIQUE,
+        class CLASS NOT NULL,
+        exchange EXCHANGE NOT NULL,
+        trading BOOLEAN NOT NULL DEFAULT FALSE,
+        date_added TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW()
+    );
+
+    CREATE INDEX assets_symbol_idx ON assets (symbol);
+EOSQL