Move alpine dockerfile to root and update viserion configuration.

.viserion.yml

@@ -19,7 +19,8 @@ builds:
         source: /v(.+)/
         target: docker.dreamnetwork.oss:5000/icedream/test-repo:$1
 
-  - context: alpine
+  - context: .
+    dockerfile: Dockerfile.alpine
     tags:
       # Git branch "master" -> Docker tag "latest"
       - from: branch

alpine/hello.c

@@ -1,31 +0,0 @@
-#define _GNU_SOURCE
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <pwd.h>
-#include <stdio.h>
-#include <errno.h>
-
-extern char *program_invocation_name;
-extern char *program_invocation_short_name;
-
-int main() {
-	register struct passwd *pw;
-	register uid_t uid;
-
-	printf("This is %s speaking.\n", program_invocation_name);
-
-	uid = geteuid();
-	pw = getpwuid(uid);
-
-	if (pw)
-	{
-		printf("Hello, %s!\n", pw->pw_name);
-	}
-	else
-	{
-		printf("I don't know your name but your ID is %d!\n", (unsigned) uid);
-	}
-
-	return 0;
-}