Give users control over snapd autorefresh mechanism - apply patch over offiical repo and build binaries

snapd-regain-sanity.patch

diff --git a/cmd/snapd/main.go b/cmd/snapd/main.go
index 741d998404..55d06d2d9c 100644
--- a/cmd/snapd/main.go
+++ b/cmd/snapd/main.go
@@ -52,6 +52,10 @@ func init() {
 }
 
 func main() {
+       if _, found := os.LookupEnv("SNAPD_DISABLE_AUTOREFRESH"); found {
+               logger.Noticef("AutoRefresh disabled due to SNAPD_DISABLE_AUTOREFRESH environment variable being set")
+       }
+
        // When preseeding re-exec is not used
        if snapdenv.Preseeding() {
                logger.Noticef("running for preseeding")
diff --git a/overlord/snapstate/autorefresh.go b/overlord/snapstate/autorefresh.go
index 7faed91d6c..51e1d5405d 100644
--- a/overlord/snapstate/autorefresh.go
+++ b/overlord/snapstate/autorefresh.go
@@ -327,6 +327,11 @@ func (m *autoRefresh) Ensure() error {
                return err
        }
 
+       if _, found := os.LookupEnv("SNAPD_DISABLE_AUTOREFRESH"); found {
+               logger.Noticef("AutoRefresh disabled due to SNAPD_DISABLE_AUTOREFRESH environment variable being set")
+               held = true
+       }
+
        // do refresh attempt (if needed)
        if !held {
                if !holdTime.IsZero() {