Upgrade to k8s v1.26.12 (#251)

* Upgrades k8s to v1.26.11 + plus related components

* Fixes URLs for kubelet.service and dropin config

The URLs changes in the kubernetes/release repository for kubelet.service and
10-kubeadm.conf. Additionally, I realized that for physical machines we were
downloading a _very_ old version of these files from a static URLs, instead of
download the version specified by K8S_TOOLING_VERSION.

* Adds missing line continuation char in Packer build

* Fixes URLs to kubelet.service file

The old URLs were pointing to the main Github page for the file, not the "raw"
URLs for the file.

* Updates k8s to v1.26.12

This version was released just yesterday or today, so might as well upgrade to
it.

config.sh

@@ -9,13 +9,13 @@
 export SITES="https://siteinfo.${PROJECT}.measurementlab.net/v2/sites/sites.json"
 
 # K8S component versions
-export K8S_VERSION=v1.25.13
-export K8S_CNI_VERSION=v1.3.0
-export K8S_CRICTL_VERSION=v1.25.0
+export K8S_VERSION=v1.26.12
+export K8S_CNI_VERSION=v1.4.0
+export K8S_CRICTL_VERSION=v1.26.1
 # v0.9.1 of the official CNI plugins release stopped including flannel, so we
 # must now install it manually.
 export K8S_FLANNELCNI_VERSION=v1.2.0
-export K8S_TOOLING_VERSION=v0.15.1
+export K8S_TOOLING_VERSION=v0.16.4
 
 # stage3 mlxupdate
 export MFT_VERSION=4.22.0-96
@@ -27,4 +27,4 @@ export MLXROM_VERSION=3.4.818
 export MULTUS_CNI_VERSION=3.9.3
 
 # etcdctl version
-export ETCDCTL_VERSION=v3.5.6
+export ETCDCTL_VERSION=v3.5.9

packer/configure_image_common.sh

@@ -55,12 +55,12 @@ chmod +x {kubeadm,kubelet,kubectl}
 
 # Install kubelet systemd service and enable it.
 curl --silent --show-error --location \
-  "https://raw.githubusercontent.com/kubernetes/release/${K8S_TOOLING_VERSION}/cmd/kubepkg/templates/latest/deb/kubelet/lib/systemd/system/kubelet.service" \
+  "https://raw.githubusercontent.com/kubernetes/release/${K8S_TOOLING_VERSION}/cmd/krel/templates/latest/kubelet/kubelet.service" \
   | sed "s:/usr/bin:/opt/bin:g" | sudo tee /etc/systemd/system/kubelet.service
 
 mkdir -p /etc/systemd/system/kubelet.service.d
 curl --silent --show-error --location \
-  "https://raw.githubusercontent.com/kubernetes/release/${K8S_TOOLING_VERSION}/cmd/kubepkg/templates/latest/deb/kubeadm/10-kubeadm.conf" \
+  "https://raw.githubusercontent.com/kubernetes/release/${K8S_TOOLING_VERSION}/cmd/krel/templates/latest/kubeadm/10-kubeadm.conf" \
   | sed "s:/usr/bin:/opt/bin:g" | sudo tee /etc/systemd/system/kubelet.service.d/10-kubeadm.conf
 
 # For convenience, when an operator needs to login and inspect things with crictl.

setup_stage3_ubuntu.sh

@@ -174,13 +174,13 @@ chroot $BOOTSTRAP bash -c 'systemctl set-default multi-user.target'
 
 # Install the kubelet.service unit file.
 curl --silent --show-error --location \
-    "https://raw.githubusercontent.com/kubernetes/release/v0.7.0/cmd/kubepkg/templates/latest/deb/kubelet/lib/systemd/system/kubelet.service" \
-    > $BOOTSTRAP/etc/systemd/system/kubelet.service
+     "https://raw.githubusercontent.com/kubernetes/release/${K8S_TOOLING_VERSION}/cmd/krel/templates/latest/kubelet/kubelet.service" \
+     > $BOOTSTRAP/etc/systemd/system/kubelet.service
 
 # Install kubelet.service config overrides.
 mkdir --parents $BOOTSTRAP/etc/systemd/system/kubelet.service.d
 curl --silent --show-error --location \
-    "https://raw.githubusercontent.com/kubernetes/release/v0.7.0/cmd/kubepkg/templates/latest/deb/kubeadm/10-kubeadm.conf" \
+     "https://raw.githubusercontent.com/kubernetes/release/${K8S_TOOLING_VERSION}/cmd/krel/templates/latest/kubeadm/10-kubeadm.conf" \
      > $BOOTSTRAP/etc/systemd/system/kubelet.service.d/10-kubeadm.conf
 
 for unit in $(find $CONFIG_DIR/etc/systemd/system -maxdepth 1 -type f -printf "%f\n"); do