Merge pull request #1692 from manuelbuil/calico_checksum

Update calico chart

Dockerfile

@@ -95,7 +95,7 @@ COPY charts/ /charts/
 RUN echo ${CACHEBUST}>/dev/null
 RUN CHART_VERSION="1.9.809"                   CHART_FILE=/charts/rke2-cilium.yaml         CHART_BOOTSTRAP=true   /charts/build-chart.sh
 RUN CHART_VERSION="v3.19.1-build2021061107"   CHART_FILE=/charts/rke2-canal.yaml          CHART_BOOTSTRAP=true   /charts/build-chart.sh
-RUN CHART_VERSION="v3.19.2-202"               CHART_FILE=/charts/rke2-calico.yaml         CHART_BOOTSTRAP=true   /charts/build-chart.sh
+RUN CHART_VERSION="v3.19.2-203"               CHART_FILE=/charts/rke2-calico.yaml         CHART_BOOTSTRAP=true   /charts/build-chart.sh
 RUN CHART_VERSION="v1.0.101"                  CHART_FILE=/charts/rke2-calico-crd.yaml     CHART_BOOTSTRAP=true   /charts/build-chart.sh
 RUN CHART_VERSION="1.16.201-build2021072308"  CHART_FILE=/charts/rke2-coredns.yaml        CHART_BOOTSTRAP=true   /charts/build-chart.sh
 RUN CHART_VERSION="3.34.003"                  CHART_FILE=/charts/rke2-ingress-nginx.yaml  CHART_BOOTSTRAP=false  /charts/build-chart.sh

docs/known_issues.md

@@ -49,3 +49,13 @@ See:
 - [grub2 manual](https://www.gnu.org/software/grub/manual/grub/grub.html#linux)
 - [systemd manual](https://www.freedesktop.org/software/systemd/man/systemd.html#Kernel%20Command%20Line)
 - [cgroups v2](https://www.kernel.org/doc/html/latest/admin-guide/cgroup-v2.html)
+
+
+## Calico with vxlan encapsulation
+
+Calico hits a kernel bug when using vxlan encapsulation and the checksum offloading of the vxlan interface is on.
+The issue is described in the [calico project](https://github.com/projectcalico/calico/issues/3145) and in
+[rke2 project](https://github.com/rancher/rke2/issues/1541). The workaround we are applying is disabling the checksum
+offloading by default by applying the value `ChecksumOffloadBroken=true` in the [calico helm chart](https://github.com/rancher/rke2-charts/blob/main/charts/rke2-calico/rke2-calico/v3.19.2-203/values.yaml#L51-L53).
+
+This issue has been observed in Ubuntu 18.04, Ubuntu 20.04 and openSUSE Leap 15.3