Pin build.lock for all layers to the commit hash

The build.lock branch points to master which means that the layer is not
locked.  Lock the layers to the commit hash instead; this ensures
reproducible builds as much as possible.

Change-Id: I66a4ae769d38ba4024bddbbd47cdf62017760405

bindep.txt

@@ -0,0 +1,4 @@
+libffi-dev [platform:dpkg]
+libpq-dev [platform:dpkg]
+libxml2-dev [platform:dpkg]
+libxslt1-dev [platform:dpkg]

charmcraft.yaml

@@ -13,7 +13,7 @@ parts:
       - libmysqlclient-dev  # for executable mysql_shell 
     override-build: |
       apt-get install ca-certificates -y
-      tox -e add-build-lock-file
+      tox -e build-reactive
     override-stage: |
       echo "Copying charm to staging area: $CHARMCRAFT_STAGE"
       NAME=$(ls $CHARMCRAFT_PART_BUILD/build/builds)

src/build.lock

@@ -5,7 +5,7 @@
       "item": "layer:options",
       "url": "https://github.com/juju-solutions/layer-options.git",
       "vcs": null,
-      "branch": "refs/heads/master",
+      "branch": "fcdcea4e5de3e1556c24e6704607862d0ba00a56",
       "commit": "fcdcea4e5de3e1556c24e6704607862d0ba00a56"
     },
     {
@@ -13,7 +13,7 @@
       "item": "layer:basic",
       "url": "https://github.com/juju-solutions/layer-basic.git",
       "vcs": null,
-      "branch": "refs/heads/master",
+      "branch": "a3ff62c32c993d80417f6e093e3ef95e42f62083",
       "commit": "a3ff62c32c993d80417f6e093e3ef95e42f62083"
     },
     {
@@ -21,7 +21,7 @@
       "item": "layer:openstack",
       "url": "https://github.com/openstack/charm-layer-openstack",
       "vcs": null,
-      "branch": "refs/heads/master",
+      "branch": "207bac8bec837edc6a4d6003f51d5b59d2d75adb",
       "commit": "207bac8bec837edc6a4d6003f51d5b59d2d75adb"
     },
     {
@@ -37,7 +37,7 @@
       "item": "interface:tls-certificates",
       "url": "https://github.com/juju-solutions/interface-tls-certificates",
       "vcs": null,
-      "branch": "refs/heads/master",
+      "branch": "d9850016d930a6d507b9fd45e2598d327922b140",
       "commit": "d9850016d930a6d507b9fd45e2598d327922b140"
     },
     {
@@ -45,7 +45,7 @@
       "item": "interface:dashboard-plugin",
       "url": "https://github.com/openstack/charm-interface-dashboard-plugin.git",
       "vcs": null,
-      "branch": "refs/heads/master",
+      "branch": "06031deac8b37e912dc69f1c6d2e2634696d2547",
       "commit": "06031deac8b37e912dc69f1c6d2e2634696d2547"
     },
     {