feat(postgres): use docker's official postgres:11 image

Dockerfile

@@ -36,7 +36,8 @@ RUN apt-get purge -y --auto-remove $BUILD_DEPS && \
 COPY rootfs /
 ENV WALE_ENVDIR=/etc/wal-e.d/env
 RUN mkdir -p $WALE_ENVDIR
-RUN python3 /patcher-script.py
+RUN python3 /patcher-script.py /bin/create_bucket
+RUN python3 /patcher-script.py /usr/local/bin/wal-e
 
 CMD ["/docker-entrypoint.sh", "postgres"]
 EXPOSE 5432

rootfs/bin/create_bucket

@@ -20,7 +20,7 @@ def bucket_exists(conn, name):
     return True
 
 bucket_name = os.getenv('BUCKET_NAME')
-region = os.getenv('AWS_REGION')
+region = os.getenv('S3_REGION')
 
 if os.getenv('DATABASE_STORAGE') == "s3":
     conn = boto.s3.connect_to_region(region)
@@ -85,6 +85,6 @@ else:
         port=int(os.getenv('S3_PORT')),
         calling_format=OrdinaryCallingFormat())
     # HACK(bacongobbler): allow boto to connect to minio by changing the region name for s3v4 auth
-    conn.auth_region_name = os.getenv('AWS_REGION')
+    conn.auth_region_name = os.getenv('S3_REGION')
     if not bucket_exists(conn, bucket_name):
         conn.create_bucket(bucket_name)

rootfs/docker-entrypoint-initdb.d/001_setup_envdir.sh

@@ -36,7 +36,7 @@ if [[ "$DATABASE_STORAGE" == "s3" || "$DATABASE_STORAGE" == "minio" ]]; then
   else
     echo "1" > AWS_INSTANCE_PROFILE
   fi
-  echo $AWS_REGION > AWS_REGION
+  echo $AWS_REGION > S3_REGION
   echo $BUCKET_NAME > BUCKET_NAME
 elif [ "$DATABASE_STORAGE" == "gcs" ]; then
   GOOGLE_APPLICATION_CREDENTIALS="/var/run/secrets/deis/objectstore/creds/key.json"

rootfs/patcher-script.d/patch_wal_e_s3.py → rootfs/patcher-script.d/patch_boto_s3.py

@@ -4,7 +4,7 @@ def patch_wal_e_hmac_auth_v4_handler():
     _init = HmacAuthV4Handler.__init__
     def wrap_init(self, *args, **kwargs):
         _init(self, *args, **kwargs)
-        self.region_name = os.getenv('AWS_REGION', self.region_name)
+        self.region_name = os.getenv('S3_REGION', self.region_name)
     HmacAuthV4Handler.__init__ = wrap_init
 
 

rootfs/patcher-script.py

@@ -1,3 +1,5 @@
+import sys
+
 patch_script = """
 
 def run_patch_scripts(patch_script_path):
@@ -15,18 +17,18 @@ def run_patch_scripts(patch_script_path):
 """
 
 
-def main():
+def main(patch_file):
     result_list = []
-    with open("/usr/local/bin/wal-e", "r") as f:
+    with open(patch_file, "r") as f:
         has_patched = False
         for line in f:
             if not has_patched and line.startswith('import'):
                 result_list.append(patch_script)
                 has_patched = True
             result_list.append(line)
-    with open("/usr/local/bin/wal-e", "w") as f:
+    with open(patch_file, "w") as f:
         for line in result_list:
             f.write(line)
 
 if __name__ == '__main__':
-    main()
+    main(sys.argv[1])