diff --git a/docker/centos/binary/swift/swift-account/Dockerfile b/docker/centos/binary/swift/swift-account/Dockerfile
index 2c26802e38..6c8d1cc199 100644
--- a/docker/centos/binary/swift/swift-account/Dockerfile
+++ b/docker/centos/binary/swift/swift-account/Dockerfile
@@ -2,5 +2,7 @@ FROM %%KOLLA_NAMESPACE%%/%%KOLLA_PREFIX%%swift-base:%%KOLLA_TAG%%
 MAINTAINER Kolla Project (https://launchpad.net/kolla)
 
 ADD ./start.sh /start.sh
-CMD ["/start.sh"]
 
+COPY config-internal.sh config-external.sh /opt/kolla/
+
+CMD ["/start.sh"]
diff --git a/docker/centos/binary/swift/swift-account/config-external.sh b/docker/centos/binary/swift/swift-account/config-external.sh
new file mode 120000
index 0000000000..e7c6637fe4
--- /dev/null
+++ b/docker/centos/binary/swift/swift-account/config-external.sh
@@ -0,0 +1 @@
+../../../../common/swift/swift-account/config-external.sh
\ No newline at end of file
diff --git a/docker/centos/binary/swift/swift-account/config-internal.sh b/docker/centos/binary/swift/swift-account/config-internal.sh
new file mode 120000
index 0000000000..48504d07e0
--- /dev/null
+++ b/docker/centos/binary/swift/swift-account/config-internal.sh
@@ -0,0 +1 @@
+../../../../common/swift/swift-account/config-internal.sh
\ No newline at end of file
diff --git a/docker/centos/binary/swift/swift-container/Dockerfile b/docker/centos/binary/swift/swift-container/Dockerfile
index 2c26802e38..6c8d1cc199 100644
--- a/docker/centos/binary/swift/swift-container/Dockerfile
+++ b/docker/centos/binary/swift/swift-container/Dockerfile
@@ -2,5 +2,7 @@ FROM %%KOLLA_NAMESPACE%%/%%KOLLA_PREFIX%%swift-base:%%KOLLA_TAG%%
 MAINTAINER Kolla Project (https://launchpad.net/kolla)
 
 ADD ./start.sh /start.sh
-CMD ["/start.sh"]
 
+COPY config-internal.sh config-external.sh /opt/kolla/
+
+CMD ["/start.sh"]
diff --git a/docker/centos/binary/swift/swift-container/config-external.sh b/docker/centos/binary/swift/swift-container/config-external.sh
new file mode 120000
index 0000000000..efc76b7af4
--- /dev/null
+++ b/docker/centos/binary/swift/swift-container/config-external.sh
@@ -0,0 +1 @@
+../../../../common/swift/swift-container/config-external.sh
\ No newline at end of file
diff --git a/docker/centos/binary/swift/swift-container/config-internal.sh b/docker/centos/binary/swift/swift-container/config-internal.sh
new file mode 120000
index 0000000000..789a210a3f
--- /dev/null
+++ b/docker/centos/binary/swift/swift-container/config-internal.sh
@@ -0,0 +1 @@
+../../../../common/swift/swift-container/config-internal.sh
\ No newline at end of file
diff --git a/docker/centos/binary/swift/swift-object/Dockerfile b/docker/centos/binary/swift/swift-object/Dockerfile
index 2c26802e38..6c8d1cc199 100644
--- a/docker/centos/binary/swift/swift-object/Dockerfile
+++ b/docker/centos/binary/swift/swift-object/Dockerfile
@@ -2,5 +2,7 @@ FROM %%KOLLA_NAMESPACE%%/%%KOLLA_PREFIX%%swift-base:%%KOLLA_TAG%%
 MAINTAINER Kolla Project (https://launchpad.net/kolla)
 
 ADD ./start.sh /start.sh
-CMD ["/start.sh"]
 
+COPY config-internal.sh config-external.sh /opt/kolla/
+
+CMD ["/start.sh"]
diff --git a/docker/centos/binary/swift/swift-object/config-external.sh b/docker/centos/binary/swift/swift-object/config-external.sh
new file mode 120000
index 0000000000..f4256fa63d
--- /dev/null
+++ b/docker/centos/binary/swift/swift-object/config-external.sh
@@ -0,0 +1 @@
+../../../../common/swift/swift-object/config-external.sh
\ No newline at end of file
diff --git a/docker/centos/binary/swift/swift-object/config-internal.sh b/docker/centos/binary/swift/swift-object/config-internal.sh
new file mode 120000
index 0000000000..3f8ba1de93
--- /dev/null
+++ b/docker/centos/binary/swift/swift-object/config-internal.sh
@@ -0,0 +1 @@
+../../../../common/swift/swift-object/config-internal.sh
\ No newline at end of file
diff --git a/docker/centos/binary/swift/swift-proxy-server/Dockerfile b/docker/centos/binary/swift/swift-proxy-server/Dockerfile
index 2c26802e38..6c8d1cc199 100644
--- a/docker/centos/binary/swift/swift-proxy-server/Dockerfile
+++ b/docker/centos/binary/swift/swift-proxy-server/Dockerfile
@@ -2,5 +2,7 @@ FROM %%KOLLA_NAMESPACE%%/%%KOLLA_PREFIX%%swift-base:%%KOLLA_TAG%%
 MAINTAINER Kolla Project (https://launchpad.net/kolla)
 
 ADD ./start.sh /start.sh
-CMD ["/start.sh"]
 
+COPY config-internal.sh config-external.sh /opt/kolla/
+
+CMD ["/start.sh"]
diff --git a/docker/centos/binary/swift/swift-proxy-server/config-external.sh b/docker/centos/binary/swift/swift-proxy-server/config-external.sh
new file mode 120000
index 0000000000..04e1c640f6
--- /dev/null
+++ b/docker/centos/binary/swift/swift-proxy-server/config-external.sh
@@ -0,0 +1 @@
+../../../../common/swift/swift-proxy-server/config-external.sh
\ No newline at end of file
diff --git a/docker/centos/binary/swift/swift-proxy-server/config-internal.sh b/docker/centos/binary/swift/swift-proxy-server/config-internal.sh
new file mode 120000
index 0000000000..f95866fdd5
--- /dev/null
+++ b/docker/centos/binary/swift/swift-proxy-server/config-internal.sh
@@ -0,0 +1 @@
+../../../../common/swift/swift-proxy-server/config-internal.sh
\ No newline at end of file
diff --git a/docker/common/swift/swift-account/config-external.sh b/docker/common/swift/swift-account/config-external.sh
new file mode 100755
index 0000000000..2de263dda0
--- /dev/null
+++ b/docker/common/swift/swift-account/config-external.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+SOURCE="/opt/kolla/swift-account/swift.conf"
+TARGET="/etc/swift/swift.conf"
+OWNER="swift"
+
+if [[ -f "$SOURCE" ]]; then
+    cp $SOURCE $TARGET
+    chown ${OWNER}: $TARGET
+    chmod 0644 $TARGET
+fi
diff --git a/docker/common/swift/swift-account/config-internal.sh b/docker/common/swift/swift-account/config-internal.sh
new file mode 100644
index 0000000000..bf86830f98
--- /dev/null
+++ b/docker/common/swift/swift-account/config-internal.sh
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+: ${SWIFT_DB_USER:=swift}
+: ${SWIFT_DB_NAME:=swift}
+: ${KEYSTONE_AUTH_PROTOCOL:=http}
+: ${SWIFT_KEYSTONE_USER:=swift}
+: ${ADMIN_TENANT_NAME:=admin}
+
+check_required_vars KEYSTONE_ADMIN_TOKEN KEYSTONE_ADMIN_SERVICE_HOST \
+                    SWIFT_ADMIN_PASSWORD
+fail_unless_db
+fail_unless_os_service_running keystone
+
+if ! [ "$SWIFT_DB_PASSWORD" ]; then
+    SWIFT_DB_PASSWORD=$(openssl rand -hex 15)
+    export SWIFT_DB_PASSWORD
+fi
+
+sh /opt/swift/config-swift.sh account-server
+
+mysql -h ${MARIADB_SERVICE_HOST} -u root -p${DB_ROOT_PASSWORD} mysql <<EOF
+CREATE DATABASE IF NOT EXISTS ${SWIFT_DB_NAME};
+GRANT ALL PRIVILEGES ON swift* TO
+'${SWIFT_DB_USER}'@'%' IDENTIFIED BY '${SWIFT_DB_PASSWORD}'
+EOF
+
+export SERVICE_TOKEN="${KEYSTONE_ADMIN_TOKEN}"
+export SERVICE_ENDPOINT="${KEYSTONE_AUTH_PROTOCOL}://${KEYSTONE_ADMIN_SERVICE_HOST}:35357/v2.0"
+
+/bin/keystone user-create --name ${SWIFT_KEYSTONE_USER} --pass ${SWIFT_ADMIN_PASSWORD}
+/bin/keystone role-create --name ${SWIFT_KEYSTONE_USER}
+/bin/keystone user-role-add --user ${SWIFT_KEYSTONE_USER} --role admin --tenant ${ADMIN_TENANT_NAME}
+
+exec /usr/bin/swift-engine
diff --git a/docker/common/swift/swift-account/start.sh b/docker/common/swift/swift-account/start.sh
old mode 100644
new mode 100755
index bf86830f98..7465fbc5db
--- a/docker/common/swift/swift-account/start.sh
+++ b/docker/common/swift/swift-account/start.sh
@@ -1,34 +1,13 @@
 #!/bin/bash
+set -o errexit
 
-: ${SWIFT_DB_USER:=swift}
-: ${SWIFT_DB_NAME:=swift}
-: ${KEYSTONE_AUTH_PROTOCOL:=http}
-: ${SWIFT_KEYSTONE_USER:=swift}
-: ${ADMIN_TENANT_NAME:=admin}
+CMD="/usr/bin/swift-engine"
+ARGS=""
 
-check_required_vars KEYSTONE_ADMIN_TOKEN KEYSTONE_ADMIN_SERVICE_HOST \
-                    SWIFT_ADMIN_PASSWORD
-fail_unless_db
-fail_unless_os_service_running keystone
+# Loading common functions.
+source /opt/kolla/kolla-common.sh
 
-if ! [ "$SWIFT_DB_PASSWORD" ]; then
-    SWIFT_DB_PASSWORD=$(openssl rand -hex 15)
-    export SWIFT_DB_PASSWORD
-fi
+# Config-internal script exec out of this function, it does not return here.
+set_configs
 
-sh /opt/swift/config-swift.sh account-server
-
-mysql -h ${MARIADB_SERVICE_HOST} -u root -p${DB_ROOT_PASSWORD} mysql <<EOF
-CREATE DATABASE IF NOT EXISTS ${SWIFT_DB_NAME};
-GRANT ALL PRIVILEGES ON swift* TO
-'${SWIFT_DB_USER}'@'%' IDENTIFIED BY '${SWIFT_DB_PASSWORD}'
-EOF
-
-export SERVICE_TOKEN="${KEYSTONE_ADMIN_TOKEN}"
-export SERVICE_ENDPOINT="${KEYSTONE_AUTH_PROTOCOL}://${KEYSTONE_ADMIN_SERVICE_HOST}:35357/v2.0"
-
-/bin/keystone user-create --name ${SWIFT_KEYSTONE_USER} --pass ${SWIFT_ADMIN_PASSWORD}
-/bin/keystone role-create --name ${SWIFT_KEYSTONE_USER}
-/bin/keystone user-role-add --user ${SWIFT_KEYSTONE_USER} --role admin --tenant ${ADMIN_TENANT_NAME}
-
-exec /usr/bin/swift-engine
+exec $CMD $ARGS
diff --git a/docker/common/swift/swift-container/config-external.sh b/docker/common/swift/swift-container/config-external.sh
new file mode 100755
index 0000000000..23c9bb4efb
--- /dev/null
+++ b/docker/common/swift/swift-container/config-external.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+SOURCE="/opt/kolla/swift-container/swift.conf"
+TARGET="/etc/swift/swift.conf"
+OWNER="swift"
+
+if [[ -f "$SOURCE" ]]; then
+    cp $SOURCE $TARGET
+    chown ${OWNER}: $TARGET
+    chmod 0644 $TARGET
+fi
diff --git a/docker/common/swift/swift-container/config-internal.sh b/docker/common/swift/swift-container/config-internal.sh
new file mode 100644
index 0000000000..42d4ccf355
--- /dev/null
+++ b/docker/common/swift/swift-container/config-internal.sh
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+: ${SWIFT_DB_USER:=swift}
+: ${SWIFT_DB_NAME:=swift}
+: ${KEYSTONE_AUTH_PROTOCOL:=http}
+: ${SWIFT_KEYSTONE_USER:=swift}
+: ${ADMIN_TENANT_NAME:=admin}
+
+check_required_vars KEYSTONE_ADMIN_TOKEN KEYSTONE_ADMIN_SERVICE_HOST \
+                    SWIFT_ADMIN_PASSWORD
+fail_unless_db
+fail_unless_os_service_running keystone
+
+if ! [ "$SWIFT_DB_PASSWORD" ]; then
+    SWIFT_DB_PASSWORD=$(openssl rand -hex 15)
+    export SWIFT_DB_PASSWORD
+fi
+
+sh /opt/swift/config-swift.sh container
+
+mysql -h ${MARIADB_SERVICE_HOST} -u root -p${DB_ROOT_PASSWORD} mysql <<EOF
+CREATE DATABASE IF NOT EXISTS ${SWIFT_DB_NAME};
+GRANT ALL PRIVILEGES ON swift* TO
+'${SWIFT_DB_USER}'@'%' IDENTIFIED BY '${SWIFT_DB_PASSWORD}'
+EOF
+
+export SERVICE_TOKEN="${KEYSTONE_ADMIN_TOKEN}"
+export SERVICE_ENDPOINT="${KEYSTONE_AUTH_PROTOCOL}://${KEYSTONE_ADMIN_SERVICE_HOST}:35357/v2.0"
+
+/bin/keystone user-create --name ${SWIFT_KEYSTONE_USER} --pass ${SWIFT_ADMIN_PASSWORD}
+/bin/keystone role-create --name ${SWIFT_KEYSTONE_USER}
+/bin/keystone user-role-add --user ${SWIFT_KEYSTONE_USER} --role admin --tenant ${ADMIN_TENANT_NAME}
+
+exec /usr/bin/swift-container-server
diff --git a/docker/common/swift/swift-container/start.sh b/docker/common/swift/swift-container/start.sh
old mode 100644
new mode 100755
index 42d4ccf355..e3187b3672
--- a/docker/common/swift/swift-container/start.sh
+++ b/docker/common/swift/swift-container/start.sh
@@ -1,34 +1,13 @@
 #!/bin/bash
+set -o errexit
 
-: ${SWIFT_DB_USER:=swift}
-: ${SWIFT_DB_NAME:=swift}
-: ${KEYSTONE_AUTH_PROTOCOL:=http}
-: ${SWIFT_KEYSTONE_USER:=swift}
-: ${ADMIN_TENANT_NAME:=admin}
+CMD="/usr/bin/swift-container-server"
+ARGS=""
 
-check_required_vars KEYSTONE_ADMIN_TOKEN KEYSTONE_ADMIN_SERVICE_HOST \
-                    SWIFT_ADMIN_PASSWORD
-fail_unless_db
-fail_unless_os_service_running keystone
+# Loading common functions.
+source /opt/kolla/kolla-common.sh
 
-if ! [ "$SWIFT_DB_PASSWORD" ]; then
-    SWIFT_DB_PASSWORD=$(openssl rand -hex 15)
-    export SWIFT_DB_PASSWORD
-fi
+# Config-internal script exec out of this function, it does not return here.
+set_configs
 
-sh /opt/swift/config-swift.sh container
-
-mysql -h ${MARIADB_SERVICE_HOST} -u root -p${DB_ROOT_PASSWORD} mysql <<EOF
-CREATE DATABASE IF NOT EXISTS ${SWIFT_DB_NAME};
-GRANT ALL PRIVILEGES ON swift* TO
-'${SWIFT_DB_USER}'@'%' IDENTIFIED BY '${SWIFT_DB_PASSWORD}'
-EOF
-
-export SERVICE_TOKEN="${KEYSTONE_ADMIN_TOKEN}"
-export SERVICE_ENDPOINT="${KEYSTONE_AUTH_PROTOCOL}://${KEYSTONE_ADMIN_SERVICE_HOST}:35357/v2.0"
-
-/bin/keystone user-create --name ${SWIFT_KEYSTONE_USER} --pass ${SWIFT_ADMIN_PASSWORD}
-/bin/keystone role-create --name ${SWIFT_KEYSTONE_USER}
-/bin/keystone user-role-add --user ${SWIFT_KEYSTONE_USER} --role admin --tenant ${ADMIN_TENANT_NAME}
-
-exec /usr/bin/swift-container-server
+exec $CMD $ARGS
diff --git a/docker/common/swift/swift-object/config-external.sh b/docker/common/swift/swift-object/config-external.sh
new file mode 100755
index 0000000000..d56baf1520
--- /dev/null
+++ b/docker/common/swift/swift-object/config-external.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+SOURCE="/opt/kolla/swift-object/swift.conf"
+TARGET="/etc/swift/swift.conf"
+OWNER="swift"
+
+if [[ -f "$SOURCE" ]]; then
+    cp $SOURCE $TARGET
+    chown ${OWNER}: $TARGET
+    chmod 0644 $TARGET
+fi
diff --git a/docker/common/swift/swift-object/config-internal.sh b/docker/common/swift/swift-object/config-internal.sh
new file mode 100644
index 0000000000..7ed97536e7
--- /dev/null
+++ b/docker/common/swift/swift-object/config-internal.sh
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+: ${SWIFT_DB_USER:=swift}
+: ${SWIFT_DB_NAME:=swift}
+: ${KEYSTONE_AUTH_PROTOCOL:=http}
+: ${SWIFT_KEYSTONE_USER:=swift}
+: ${ADMIN_TENANT_NAME:=admin}
+
+check_required_vars KEYSTONE_ADMIN_TOKEN KEYSTONE_ADMIN_SERVICE_HOST \
+                    SWIFT_ADMIN_PASSWORD
+fail_unless_db
+fail_unless_os_service_running keystone
+
+if ! [ "$SWIFT_DB_PASSWORD" ]; then
+    SWIFT_DB_PASSWORD=$(openssl rand -hex 15)
+    export SWIFT_DB_PASSWORD
+fi
+
+sh /opt/swift/config-swift.sh engine
+
+mysql -h ${MARIADB_SERVICE_HOST} -u root -p${DB_ROOT_PASSWORD} mysql <<EOF
+CREATE DATABASE IF NOT EXISTS ${SWIFT_DB_NAME};
+GRANT ALL PRIVILEGES ON swift* TO
+'${SWIFT_DB_USER}'@'%' IDENTIFIED BY '${SWIFT_DB_PASSWORD}'
+EOF
+
+export SERVICE_TOKEN="${KEYSTONE_ADMIN_TOKEN}"
+export SERVICE_ENDPOINT="${KEYSTONE_AUTH_PROTOCOL}://${KEYSTONE_ADMIN_SERVICE_HOST}:35357/v2.0"
+
+/bin/keystone user-create --name ${SWIFT_KEYSTONE_USER} --pass ${SWIFT_ADMIN_PASSWORD}
+/bin/keystone role-create --name ${SWIFT_KEYSTONE_USER}
+/bin/keystone user-role-add --user ${SWIFT_KEYSTONE_USER} --role admin --tenant ${ADMIN_TENANT_NAME}
+
+exec /usr/bin/swift-object-server
diff --git a/docker/common/swift/swift-object/start.sh b/docker/common/swift/swift-object/start.sh
old mode 100644
new mode 100755
index 7ed97536e7..abda77dbea
--- a/docker/common/swift/swift-object/start.sh
+++ b/docker/common/swift/swift-object/start.sh
@@ -1,34 +1,13 @@
 #!/bin/bash
+set -o errexit
 
-: ${SWIFT_DB_USER:=swift}
-: ${SWIFT_DB_NAME:=swift}
-: ${KEYSTONE_AUTH_PROTOCOL:=http}
-: ${SWIFT_KEYSTONE_USER:=swift}
-: ${ADMIN_TENANT_NAME:=admin}
+CMD="/usr/bin/swift-object-server"
+ARGS=""
 
-check_required_vars KEYSTONE_ADMIN_TOKEN KEYSTONE_ADMIN_SERVICE_HOST \
-                    SWIFT_ADMIN_PASSWORD
-fail_unless_db
-fail_unless_os_service_running keystone
+# Loading common functions.
+source /opt/kolla/kolla-common.sh
 
-if ! [ "$SWIFT_DB_PASSWORD" ]; then
-    SWIFT_DB_PASSWORD=$(openssl rand -hex 15)
-    export SWIFT_DB_PASSWORD
-fi
+# Config-internal script exec out of this function, it does not return here.
+set_configs
 
-sh /opt/swift/config-swift.sh engine
-
-mysql -h ${MARIADB_SERVICE_HOST} -u root -p${DB_ROOT_PASSWORD} mysql <<EOF
-CREATE DATABASE IF NOT EXISTS ${SWIFT_DB_NAME};
-GRANT ALL PRIVILEGES ON swift* TO
-'${SWIFT_DB_USER}'@'%' IDENTIFIED BY '${SWIFT_DB_PASSWORD}'
-EOF
-
-export SERVICE_TOKEN="${KEYSTONE_ADMIN_TOKEN}"
-export SERVICE_ENDPOINT="${KEYSTONE_AUTH_PROTOCOL}://${KEYSTONE_ADMIN_SERVICE_HOST}:35357/v2.0"
-
-/bin/keystone user-create --name ${SWIFT_KEYSTONE_USER} --pass ${SWIFT_ADMIN_PASSWORD}
-/bin/keystone role-create --name ${SWIFT_KEYSTONE_USER}
-/bin/keystone user-role-add --user ${SWIFT_KEYSTONE_USER} --role admin --tenant ${ADMIN_TENANT_NAME}
-
-exec /usr/bin/swift-object-server
+exec $CMD $ARGS
diff --git a/docker/common/swift/swift-proxy-server/config-external.sh b/docker/common/swift/swift-proxy-server/config-external.sh
new file mode 100755
index 0000000000..8134627350
--- /dev/null
+++ b/docker/common/swift/swift-proxy-server/config-external.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+SOURCE="/opt/kolla/swift-proxy-server/swift.conf"
+TARGET="/etc/swift/swift.conf"
+OWNER="swift"
+
+if [[ -f "$SOURCE" ]]; then
+    cp $SOURCE $TARGET
+    chown ${OWNER}: $TARGET
+    chmod 0644 $TARGET
+fi
diff --git a/docker/common/swift/swift-proxy-server/config-internal.sh b/docker/common/swift/swift-proxy-server/config-internal.sh
new file mode 100644
index 0000000000..3f387d187e
--- /dev/null
+++ b/docker/common/swift/swift-proxy-server/config-internal.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+sh /opt/swift/config-swift.sh proxy
+
+exec /usr/bin/swift-proxy-server
diff --git a/docker/common/swift/swift-proxy-server/start.sh b/docker/common/swift/swift-proxy-server/start.sh
old mode 100644
new mode 100755
index 3f387d187e..8957b50521
--- a/docker/common/swift/swift-proxy-server/start.sh
+++ b/docker/common/swift/swift-proxy-server/start.sh
@@ -1,5 +1,13 @@
 #!/bin/bash
+set -o errexit
 
-sh /opt/swift/config-swift.sh proxy
+CMD="/usr/bin/swift-proxy-server"
+ARGS=""
 
-exec /usr/bin/swift-proxy-server
+# Loading common functions.
+source /opt/kolla/kolla-common.sh
+
+# Config-internal script exec out of this function, it does not return here.
+set_configs
+
+exec $CMD $ARGS