feat: Do not rely on k0s file uploads - instead use curl (#1229)

* feat: Do not rely on k0s file uploads - instead use curl

Signed-off-by: Devin Buhl <devin@buhl.casa>

* fix: add bootstrap_advanced_flags to validation

Signed-off-by: Devin Buhl <devin@buhl.casa>

* fix: only skip tests for non-static config

Signed-off-by: Devin Buhl <devin@buhl.casa>

* fix: only skip tests for non-static config

Signed-off-by: Devin Buhl <devin@buhl.casa>

* fix: issues in k0s scripts

Signed-off-by: Devin Buhl <devin@buhl.casa>

* update: readme

Signed-off-by: Devin Buhl <devin@buhl.casa>

* update: taskfile

Signed-off-by: Devin Buhl <devin@buhl.casa>

* update: taskfile

Signed-off-by: Devin Buhl <devin@buhl.casa>

* update: k0s config and remove ansible hook

Signed-off-by: Devin Buhl <devin@buhl.casa>

---------

Signed-off-by: Devin Buhl <devin@buhl.casa>

bootstrap/scripts/plugin.py

@@ -20,9 +20,6 @@ def encrypt(value: str) -> str:
 
 class Plugin(makejinja.plugin.Plugin):
     def __init__(self, data: dict[str, Any]):
-        if data.get("skip_tests", False):
-            return
-
         validation.validate(data)
 
     def filters(self) -> makejinja.plugin.Filters:

bootstrap/scripts/validation.py

@@ -100,14 +100,17 @@ def validate_distribution(distribution: str, **_) -> None:
     _validate_distribution(distribution)
 
 
-@required("bootstrap_github_username", "bootstrap_github_repository_name", "bootstrap_github_repository_branch")
-def validate_github(username: str, repository: str, branch: str, **_) -> None:
+@required("bootstrap_github_username", "bootstrap_github_repository_name", "bootstrap_advanced_flags")
+def validate_github(username: str, repository: str, advanced_flags: dict, **_) -> None:
     try:
-        request = requests.get(f"https://api.github.com/repos/{username}/{repository}/branches/{branch}")
+        request = requests.get(
+            f"https://api.github.com/repos/{username}/{repository}/branches/{advanced_flags.get('github_repository_branch', 'main')}")
         if request.status_code != 200:
-            raise ValueError(f"GitHub repository {username}/{repository} branch {branch} not found")
+            raise ValueError(
+                f"GitHub repository {username}/{repository} branch {advanced_flags.get('github_repository_branch', 'main')} not found")
     except requests.exceptions.RequestException as e:
-        raise ValueError(f"GitHub repository {username}/{repository} branch {branch} not found") from e
+        raise ValueError(
+            f"GitHub repository {username}/{repository} branch {advanced_flags.get('github_repository_branch', 'main')} not found") from e
 
 
 @required("bootstrap_age_public_key")
@@ -240,18 +243,27 @@ def validate_nodes(node_cidr: str, nodes: dict[list], distribution: str, **_) ->
         _validate_node(node, node_cidr, distribution)
 
 
+def massage(data: dict) -> dict:
+    data["bootstrap_advanced_flags"] = data.get("bootstrap_advanced_flags", {})
+    return data
+
 def validate(data: dict) -> None:
+    user_data = massage(data)
+
     validate_python_version()
-    validate_cli_tools(data)
-    validate_distribution(data)
-    if not data.get("bootstrap_private_github_repo"):
-        validate_github(data)
-    validate_age(data)
-    validate_timezone(data)
-    validate_acme_email(data)
-    validate_flux_github_webhook_token(data)
-    validate_cloudflare(data)
-    validate_host_network(data)
-    validate_bootstrap_dns_server(data)
-    validate_cluster_cidrs(data)
-    validate_nodes(data)
+    validate_cli_tools(user_data)
+    validate_distribution(user_data)
+    validate_age(user_data)
+    validate_timezone(user_data)
+    validate_bootstrap_dns_server(user_data)
+    validate_cluster_cidrs(user_data)
+    validate_flux_github_webhook_token(user_data)
+    validate_host_network(user_data)
+    validate_acme_email(user_data)
+
+    if not user_data.get("bootstrap_private_github_repo"):
+        validate_github(user_data)
+
+    if not user_data.get("skip_tests", False):
+        validate_cloudflare(user_data)
+        validate_nodes(user_data)

bootstrap/templates/ansible/playbooks/cluster-prepare.yaml.j2

@@ -62,7 +62,7 @@
               ff02::2 ip6-allrouters
             dest: /etc/hosts
             mode: preserve
-        #% if bootstrap_advanced_flags.update_resolv_conf %#
+        #% if bootstrap_advanced_flags.update_resolv_conf|default(true) %#
         # https://github.com/onedr0p/flux-cluster-template/discussions/635
         - name: Network Configuration | Remove immutable flag from /etc/resolv.conf
           ansible.builtin.file:

bootstrap/templates/kubernetes/flux/config/cluster.yaml.j2

@@ -7,7 +7,7 @@ metadata:
 spec:
   interval: 30m
   ref:
-    branch: "#{ bootstrap_github_repository_branch }#"
+    branch: "#{ bootstrap_advanced_flags.github_repository_branch|default('main', true) }#"
   #% if bootstrap_private_github_repo %#
   secretRef:
     name: github-deploy-key

bootstrap/templates/kubernetes/k0s/k0sctl.yaml.j2

@@ -14,37 +14,15 @@ spec:
       installFlags:
         - --disable-components=metrics-server
         - --no-taints
-      #% if loop.first %#
-      files: &files
-        - name: system-config
-          src: resources/hooks/
-          dstDir: /home/#{ item.username }#/k0s/hooks/
-          perm: 0644
-          user: root
-          group: root
-        - name: containerd-config
-          src: resources/containerd/
-          dstDir: /home/#{ item.username }#/k0s/containerd/
-          perm: 0644
-          user: root
-          group: root
-      #% else %#
-      files: *files
-      #% endif %#
-      #% if loop.first %#
-      hooks: &hooks
+      hooks:
         apply:
           before:
-            - sudo bash /home/#{ item.username }#/k0s/hooks/apply-system.sh
-            - sudo mv /home/#{ item.username }#/k0s/containerd/default.toml /etc/k0s/containerd.d/default.toml
+            - curl -sfL https://raw.githubusercontent.com/#{ bootstrap_github_username }#/#{ bootstrap_github_repository_name }#/#{ bootstrap_advanced_flags.github_repository_branch|default('main', true) }#/kubernetes/k0s/resources/apply-system.sh | INSTALL_K0S_HOSTNAME="#{ item.name }#" bash -s -
         reset:
           before:
-            - sudo bash /home/#{ item.username }#/k0s/hooks/reset-cilium.sh
+            - curl -sfL https://raw.githubusercontent.com/#{ bootstrap_github_username }#/#{ bootstrap_github_repository_name }#/#{ bootstrap_advanced_flags.github_repository_branch|default('main', true) }#/kubernetes/k0s/resources/reset-cilium.sh | bash -s -
           after:
-            - sudo bash /home/#{ item.username }#/k0s/hooks/reset-system.sh
-      #% else %#
-      hooks: *hooks
-      #% endif %#
+            - curl -sfL https://raw.githubusercontent.com/#{ bootstrap_github_username }#/#{ bootstrap_github_repository_name }#/#{ bootstrap_advanced_flags.github_repository_branch|default('main', true) }#/kubernetes/k0s/resources/reset-system.sh | bash -s -
     #% endfor %#
     #% if bootstrap_nodes.worker | length > 0 %#
     #% for item in bootstrap_nodes.worker %#
@@ -52,8 +30,15 @@ spec:
       ssh:
         address: "#{ item.address }#"
         user: "#{ item.username }#"
-      files: *files
-      hooks: *hooks
+      hooks:
+        apply:
+          before:
+            - curl -sfL https://raw.githubusercontent.com/#{ bootstrap_github_username }#/#{ bootstrap_github_repository_name }#/#{ bootstrap_advanced_flags.github_repository_branch|default('main', true) }#/kubernetes/k0s/resources/apply-system.sh | INSTALL_K0S_HOSTNAME="#{ item.name }#" bash -s -
+        reset:
+          before:
+            - curl -sfL https://raw.githubusercontent.com/#{ bootstrap_github_username }#/#{ bootstrap_github_repository_name }#/#{ bootstrap_advanced_flags.github_repository_branch|default('main', true) }#/kubernetes/k0s/resources/reset-cilium.sh | bash -s -
+          after:
+            - curl -sfL https://raw.githubusercontent.com/#{ bootstrap_github_username }#/#{ bootstrap_github_repository_name }#/#{ bootstrap_advanced_flags.github_repository_branch|default('main', true) }#/kubernetes/k0s/resources/reset-system.sh | bash -s -
     #% endfor %#
     #% endif %#
   k0s:

bootstrap/templates/kubernetes/k0s/resources/apply-system.sh.j2

@@ -1,11 +1,25 @@
 #% if bootstrap_distribution == 'k0s' %#
 #!/usr/bin/env bash
+set -e
+set -o noglob
 
 [ $(id -u) -eq 0 ] || exec sudo $0 $@
 
 # Prepare
 sudo apt-get update -y
 
+# Hostname
+if [ -n "${INSTALL_K0S_HOSTNAME}" ] && [ "$(hostnamectl hostname)" != "${INSTALL_K0S_HOSTNAME}" ]; then
+    hostnamectl set-hostname "${INSTALL_K0S_HOSTNAME}"
+tee /etc/hosts > /dev/null <<EOF
+127.0.0.1 localhost
+127.0.1.1 $INSTALL_K0S_HOSTNAME
+::1       localhost ip6-localhost ip6-loopback
+ff02::1   ip6-allnodes
+ff02::2   ip6-allrouters
+EOF
+fi
+
 # Timezone
 timedatectl set-timezone "#{ bootstrap_timezone }#"
 
@@ -16,7 +30,7 @@ apt-get install -y --no-install-recommends \
     nvme-cli open-iscsi parted psmisc python3 python3-apt python3-kubernetes python3-yaml \
     smartmontools socat software-properties-common unzip util-linux
 
-#% if bootstrap_advanced_flags.update_resolv_conf %#
+#% if bootstrap_advanced_flags.update_resolv_conf|default(true) %#
 # Update DNS
 chattr -i /etc/resolv.conf
 rm -f /etc/resolv.conf
@@ -37,9 +51,9 @@ systemctl restart systemd-modules-load.service
 
 # Sysctls
 cat <<EOF > /etc/sysctl.d/99-kubernetes.conf
-fs.inotify.max_queued_events: 65536
-fs.inotify.max_user_watches: 524288
-fs.inotify.max_user_instances: 8192
+fs.inotify.max_queued_events = 65536
+fs.inotify.max_user_watches = 524288
+fs.inotify.max_user_instances = 8192
 EOF
 sysctl -p /etc/sysctl.d/99-kubernetes.conf
 
@@ -57,6 +71,17 @@ neofetch --config none
 EOF
 chmod 755 /etc/profile.d/neofetch.sh
 
-# Ensure k0s containerd directory exists
+# Create containerd config
 mkdir -p /etc/k0s/containerd.d
+cat <<EOF > /etc/k0s/containerd.d/default.toml
+[plugins."io.containerd.grpc.v1.cri"]
+  enable_unprivileged_ports = true
+  enable_unprivileged_icmp = true
+[plugins."io.containerd.grpc.v1.cri".registry]
+  config_path = "/var/lib/k0s/containerd/certs.d"
+[plugins."io.containerd.grpc.v1.cri".containerd]
+  discard_unpacked_layers = false
+[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
+  discard_unpacked_layers = false
+EOF
 #% endif %#

bootstrap/templates/kubernetes/k0s/resources/containerd/default.toml.j2

@@ -1,11 +0,0 @@
-#% if bootstrap_distribution == 'k0s' %#
-[plugins."io.containerd.grpc.v1.cri"]
-  enable_unprivileged_ports = true
-  enable_unprivileged_icmp = true
-[plugins."io.containerd.grpc.v1.cri".registry]
-  config_path = "/var/lib/k0s/containerd/certs.d"
-[plugins."io.containerd.grpc.v1.cri".containerd]
-  discard_unpacked_layers = false
-[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
-  discard_unpacked_layers = false
-#% endif %#

bootstrap/templates/kubernetes/k0s/resources/reset-cilium.sh.j2

@@ -1,5 +1,7 @@
 #% if bootstrap_distribution == 'k0s' %#
 #!/usr/bin/env bash
+set -e
+set -o noglob
 
 [ $(id -u) -eq 0 ] || exec sudo $0 $@
 

bootstrap/templates/kubernetes/k0s/resources/reset-system.sh.j2

@@ -1,8 +1,13 @@
 #% if bootstrap_distribution == 'k0s' %#
 #!/usr/bin/env bash
+set -e
+set -o noglob
 
 [ $(id -u) -eq 0 ] || exec sudo $0 $@
 
+# Remove containerd config
+rm -rf /etc/k0s/containerd.d
+
 # Remove local storage data
 rm -rf "#{ bootstrap_advanced_flags.local_storage_path|default('/var/openebs/local', true) }#"
 

bootstrap/vars/config.sample.yaml

@@ -10,8 +10,6 @@ bootstrap_distribution: k3s
 bootstrap_github_username:
 # Github repository (e.g. flux-cluster-template)
 bootstrap_github_repository_name:
-# Github repository branch (e.g. main)
-bootstrap_github_repository_branch: main
 # Age Public Key (e.g. age15uzrw396e67z9wdzsxzdk7ka0g2gr3l460e0slaea563zll3hdfqwqxdta)
 bootstrap_age_public_key:
 # Choose your timezone (e.g. America/New_York)
@@ -90,6 +88,8 @@ bootstrap_nodes:
 #
 
 # bootstrap_advanced_flags:
+#   # Github repository branch
+#   github_repository_branch: main
 #   # Disable to prevent changes to nodes /etc/resolv.conf
 #   update_resolv_conf: true
 #   # Cilium load balancer mode, choose either 'dsr' or 'snat'