Changes:

- Fixed EOLs
- Implemented health checking on startup
- Fixed non-configurable connection string settings
- Upgraded version to 1.2.0

Author: MirzaMerdovic

Examples/Data/scripts/rat.sql

@@ -3,11 +3,10 @@
 USE master
 GO
 
-ALTER DATABASE Rat SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
-
 -- Create the new database if it does not exist already
 IF EXISTS (SELECT [name] FROM sys.databases WHERE [name] = N'Rat')
-    DROP DATABASE rat
+	ALTER DATABASE Rat SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
+	DROP DATABASE rat
 
 CREATE DATABASE Rat
 GO
@@ -22,7 +21,7 @@ CREATE TABLE [dbo].[Configuration]
 	[Expires] INT NOT NULL DEFAULT(60)
 
 	CONSTRAINT [PK_Configuration_Id] PRIMARY KEY ([Id] ASC),
-    CONSTRAINT [UQ_Configuration_Key] UNIQUE ([Key])
+	CONSTRAINT [UQ_Configuration_Key] UNIQUE ([Key])
 );
 
 GO

docker-compose.yml

@@ -42,6 +42,10 @@ services:
     build:
       context: ./src
       dockerfile: Dockerfile
+    environment:
+      - SERVER_INSTANCE=sqlserver
+      - USER_ID=sa
+      - PASSWORD=Password1!
     depends_on:
       - sqlserver
     stdin_open: true

src/VERSION

@@ -1 +1 @@
-1.0.1
+1.2.0

src/entrypoint.sh

@@ -2,9 +2,15 @@
 
 main() {
 
-    export PATH=$PATH:/opt/mssql-tools/bin
+	validateInptus $SERVER_INSTANCE
+	validateInptus $USER_ID
+	validateInptus $PASSWORD
 
-    echo "Work directory: $PWD"
+	export PATH=$PATH:/opt/mssql-tools/bin
+
+	echo "Work directory: $PWD"
+
+	wiatForServerToBecomeHealthy
 
 	cd shower
 	input="playlist"
@@ -20,24 +26,66 @@ main() {
 	cd scripts
 	echo "WORKDIR: $PWD"
 
-    for i in $(echo $PLAYLIST | sed "s/,/ /g")
+	for i in $(echo $PLAYLIST | sed "s/,/ /g")
 	do
 		echo "Start running script: $i"
-		sqlcmd -S sqlserver -U sa -P Password1! -i $i || exit 1
+		sqlcmd -S $SERVER_INSTANCE -U $USER_ID -P $PASSWORD -i $i || exit 1
 		echo "Finished running script: $i"
 	done
 
 	outro
 }
 
+validateInptus() {
+	if [ -z "$1" ];
+	then
+		echo "$1 variable is not set"
+		exit 1
+	fi;
+}
+
+wiatForServerToBecomeHealthy() {
+
+	HEALTHY=0;
+	COUNTER=0;
+
+	echo "HEALTHY: $HEALTHY and COUNTER: $COUNTER";
+
+	while [ $HEALTHY = 0 ] && [ $COUNTER -lt 5 ]
+	do
+
+		if [ $COUNTER -gt 0 ];
+		then
+			sleep 5
+		fi;
+
+		COUNTER=$(($COUNTER + 1));
+		HEALTHY=1;
+
+		echo "Starting health check. Try number: $COUNTER"
+		sqlcmd -S $SERVER_INSTANCE -U $USER_ID -P $PASSWORD -Q "SELECT 1" || HEALTHY=0
+		echo "Finished health check. Server: $SERVER_INSTANCE is healthy: $HEALTHY"
+	done;
+
+	if [ $HEALTHY -eq 0 ];
+	then
+		echo "SQL Server Instance $SERVER_INSTANCE is unhealthy."
+
+		exit 1;
+	else
+		echo "Sql Server Instance $SERVER_INSTANCE is healthy."
+	fi;
+};
+
 buildPlaylist() {
 	if [ -z "$1" ];
 	then
 		PLAYLIST=$2
 	else
 		PLAYLIST=$1,$2
 	fi;
-}
+};
+
 outro() {
 	echo "\t\t" '   .--./""---.._             '
 	echo "\t\t" '  /`.-.|      //\\           '
@@ -46,6 +94,6 @@ outro() {
 	echo "\t\t" '          `.\\://  `-. `-.   '
 	echo "\t\t" '            '--' `. `.       '
 	echo "\t\t" '                '.   .  '-.  '
-}
+};
 
 main