Merge "Add mechanism for patching files in containers"

1 files changed, 55 insertions, 0 deletions

diff --git a/docker/base/kolla_patch.sh b/docker/base/kolla_patch.sh
new file mode 100755
index 000000000..b17a5b61d
--- /dev/null
+++ b/docker/base/kolla_patch.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+
+# This script works as debian quilt patch.
+# So, patch files included in /patches/series
+# are applied and information what was applied
+# is stored in /etc/kolla/patched.
+#
+# No more, no less :)
+
+cd /
+
+# If exist /patches/series
+# let's try to apply patches
+if [ -e "/patches/series" ]; then
+    # If there is /patches/series.applied
+    # then it means previous run already applied
+    # some patches - from another intermediate container
+    #
+    # So, let's add patches again to /patches/series
+    # and let's script to handle it
+    if [ -e "/patches/series.applied" ]; then
+        grep -v '^#' /patches/series.applied > /tmp/series.tmp
+        grep -v '^#' /patches/series >> /tmp/series.tmp
+        rm -f /patches/series
+        mv /tmp/series.tmp /patches/series
+    fi
+    touch /etc/kolla/patched
+    for patchfile in $(grep -v '^#' /patches/series); do
+        # If patch is not applied, try to apply it, otherwise
+        # inform user that patchfile is already applied
+        if ! grep -q "$patchfile" /etc/kolla/patched; then
+            echo "[i] Applying /patches/${patchfile}"
+            patch -p0 --fuzz=0 --ignore-whitespace < /patches/${i}/${patchfile}
+            # If apply patch was successful inform user,
+            # otherwise fail build process and inform user
+            # to check/fix patch
+            if [ $? -eq 0 ]; then
+                echo "[i] Applied /patches/${patchfile}" >> /etc/kolla/patched
+            else
+                echo "[i] Patch /patches/${patchfile} failed, please fix your patchfiles."
+                exit 1
+            fi
+        else
+            echo "[i] /patches/${patchfile} already applied."
+        fi
+    done
+    # Ignore files which are commented and move
+    # to /patches/series.applied as /patch/series
+    # can be potentially replaced by another files
+    # from different intermediate container
+    grep -v '^#' /patches/series > /patches/series.applied
+    rm -f /patches/series
+else
+    echo "[i] No series file found, nothing to patch."
+fi