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commit 75b39fd6738951cdf44ab55b8dd86bbbef19c72c
parent 9a93582d7523d2f876e90dd5b2740db22ca752e7
Author: Vincent Demeester <vincent@sbr.pm>
Date:   Wed, 15 Sep 2021 19:44:59 +0200

tools/k8s.infra: add more subcommand…

… and try bootstraping

Signed-off-by: Vincent Demeester <vincent@sbr.pm>

Diffstat:
M
tools/k8s.infra/k8s.infra.sh
 | 
86
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---

1 file changed, 83 insertions(+), 3 deletions(-)
diff --git a/tools/k8s.infra/k8s.infra.sh b/tools/k8s.infra/k8s.infra.sh
@@ -1,20 +1,100 @@
 #!/usr/bin/env bash
 # univ: update niv (and generate a nice commit)
 
+# TODO: Maybe rewrite this in Python..
+
+# TODO libguestfs-with-appliance
+# TODO create images with qemu-img and virt-format --format=qcow2 --filesystem=ext4 -a vdisk1.qcow2
+# TODO Create xml by hand instead of virt-install
+
 set -euo pipefail
 
+# export QEMU_URI=qemu+ssh://vincent@wakasu.home/system
+# virt-install --connect=${QEMU_URI} \
+#              --name="ocp4-bootstrap" --vcpus=4 --ram=8192 \
+#              --disk path=/var/lib/libvirt/images/ocp-bootstrap.qcow2,bus=virtio,size=120 \
+#              --boot menu=on --print-xml > ocp4-bootstrap.xml
+# virsh --connect=${QEMU_URI} \
+    #       define --file ocp4-bootstrap.xml
+
 HOST=${HOST:-wakasu.home}
+QEMU_URI="qemu+ssh://${HOST}/system"
 RSYNC_COMMAND="rsync -avzHXShPse ssh --progress"
+VIRSH_COMMAND="virsh --connect=${QEMU_URI}"
+NODES=(
+    k8sn1
+    k8sn2
+    k8sn3
+)
 
-main() {
-    for n in k8sn1 k8sn2 k8sn3; do
+build() {
+    for n in ${NODES[@]}; do
         logs=$(mktemp)
         output=$(mktemp)
         echo "Build ${n} node (logs: ${logs})…"
         nixos-generate -f qcow -c ./systems/hosts/${n}.nix 2>${logs} 1>${output}
         echo "Syncthing image to ${HOST}…"
-        ${RSYNC_COMMAND} $(cat ${output} | tr -d '\n') root@${HOST}:/var/lib/libvirt/images/${n}.qcow2 --dry-run
+        ${RSYNC_COMMAND} $(cat ${output} | tr -d '\n') root@${HOST}:/var/lib/libvirt/images/${n}.qcow2
     done
 }
 
+delete() {
+    for n in ${NODES[@]}; do
+        echo "Delete ${n} node…"
+        ${VIRSH_COMMAND} list | grep ${n} && {
+            ${VIRSH_COMMAND} destroy ${n}
+        } || {
+            echo "skipping, not present…"
+        }
+    done
+}
+
+# Bootstrap the cluster, assuming images are built and synced
+bootstrap() {
+    echo "Bootstrap k8s cluster on ${HOST}"
+    k8sn1_mac="52:54:00:dd:a3:30"
+    k8sn2_mac="52:54:00:dd:a3:31"
+    k8sn3_mac="52:54:00:dd:a3:32"
+    folder=$(mktemp -d)
+    for n in ${NODES[@]}; do
+        mac_addr=${n}_mac
+        virt-install --connect=${QEMU_URI} \
+                     --name="${n}" --vcpus=4 --ram=8192 \
+                     --network bridge=br1,mac.address=${!mac_addr} \
+                     --disk path=/var/lib/libvirt/images/${n}.qcow2,bus=virtio,size=10 \
+                     --print-xml > ${folder}/${n}.xml
+                     # --disk path=/var/lib/libvirt/images/${n}-data.qcow2,bus=virtio,size=40 \
+        echo "Node ${n} : ${folder}/${n}.xml"
+        ${VIRSH_COMMAND} define --file ${folder}/${n}.xml
+    done
+}
+
+status() {
+    echo "TBD: display the status of the cluster"
+}
+
+main() {
+    set +u
+    ARG=$1
+    set -u
+    case ${ARG} in
+        "build")
+            build
+            ;;
+        "delete")
+            delete
+            ;;
+        "bootstrap")
+            bootstrap
+            ;;
+        "status")
+            status
+            ;;
+        *)
+            echo "No such subcommand"
+            exit 1
+            ;;
+    esac
+}
+
 main $@