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2 Commits

Author SHA1 Message Date
Max
44d59737c7 bug: stuck 2026-01-01 17:10:55 -05:00
Max
b04298adfb test: try doing the lb separately 2026-01-01 15:59:48 -05:00
9 changed files with 233 additions and 288 deletions

View File

@@ -4,7 +4,7 @@
vars_files: vars_files:
- ../vault.yml - ../vault.yml
tasks: tasks:
- name: Destroy - name: Destroy Terraform.
community.general.terraform: community.general.terraform:
project_path: '../terraform' project_path: '../terraform'
state: "absent" state: "absent"

View File

@@ -1,140 +1,154 @@
- name: Configure compute for the cluster. # - name: Configure compute for the cluster.
hosts: servers # hosts: servers
gather_facts: false # gather_facts: false
vars: # vars:
kubernetes_version: v1.30 # kubernetes_version: v1.30
tasks: # tasks:
- name: Download Kubernetes key. # - name: Download Kubernetes key.
ansible.builtin.apt_key: # ansible.builtin.apt_key:
url: https://pkgs.k8s.io/core:/stable:/{{ kubernetes_version }}/deb/Release.key # url: https://pkgs.k8s.io/core:/stable:/{{ kubernetes_version }}/deb/Release.key
state: present # state: present
- name: Download Kubernetes repository. # - name: Download Kubernetes repository.
ansible.builtin.apt_repository: # ansible.builtin.apt_repository:
repo: "deb https://pkgs.k8s.io/core:/stable:/{{ kubernetes_version }}/deb/ /" # repo: "deb https://pkgs.k8s.io/core:/stable:/{{ kubernetes_version }}/deb/ /"
state: present # state: present
- name: Download CRI-O key. # - name: Download CRI-O key.
ansible.builtin.apt_key: # ansible.builtin.apt_key:
url: https://pkgs.k8s.io/addons:/cri-o:/prerelease:/main/deb/Release.key # url: https://pkgs.k8s.io/addons:/cri-o:/prerelease:/main/deb/Release.key
state: present # state: present
- name: Download CRI-O repository. # - name: Download CRI-O repository.
ansible.builtin.apt_repository: # ansible.builtin.apt_repository:
repo: "deb https://pkgs.k8s.io/addons:/cri-o:/prerelease:/main/deb/ /" # repo: "deb https://pkgs.k8s.io/addons:/cri-o:/prerelease:/main/deb/ /"
state: present # state: present
- name: Download Helm key. # - name: Download Helm key.
ansible.builtin.apt_key: # ansible.builtin.apt_key:
url: https://packages.buildkite.com/helm-linux/helm-debian/gpgkey # url: https://packages.buildkite.com/helm-linux/helm-debian/gpgkey
state: present # state: present
- name: Download Helm repository. # - name: Download Helm repository.
ansible.builtin.apt_repository: # ansible.builtin.apt_repository:
repo: "deb https://packages.buildkite.com/helm-linux/helm-debian/any/ any main" # repo: "deb https://packages.buildkite.com/helm-linux/helm-debian/any/ any main"
state: present # state: present
- name: Install packages. # - name: Install packages.
ansible.builtin.apt: # ansible.builtin.apt:
state: present # state: present
update_cache: true # update_cache: true
name: [cri-o, kubelet, kubeadm, kubectl, python3-pip, helm, git] # name: [cri-o, kubelet, kubeadm, kubectl, python3-pip, helm, git]
- name: Install Kubernetes Python packages. # - name: Install Kubernetes Python packages.
ansible.builtin.pip: # ansible.builtin.pip:
name: [kubernetes, pyyaml] # name: [kubernetes, pyyaml]
state: present # state: present
break_system_packages: true # break_system_packages: true
- name: Enable IPv4 forwarding. # - name: Enable `br_netfilter` module.
ansible.posix.sysctl: # community.general.modprobe:
name: net.ipv4.ip_forward # name: br_netfilter
value: '1' # state: present
sysctl_set: true # notify: Reboot the nodes.
notify: Reboot the nodes.
- name: Enable `br_netfilter` module. # - name: Configure `sysctl` permanently.
community.general.modprobe: # ansible.posix.sysctl:
name: br_netfilter # name: '{{ item }}'
state: present # value: '1'
notify: Reboot the nodes. # state: present
# reload: true
# loop:
# - net.bridge.bridge-nf-call-iptables
# - net.ipv4.ip_forward
handlers: # handlers:
- name: Reboot the nodes. # - name: Reboot the nodes.
ansible.builtin.reboot: # ansible.builtin.reboot:
- name: Spawn new cluster on control node. # - name: Spawn new cluster on control node.
hosts: control # hosts: control
gather_facts: false # gather_facts: false
vars: # vars:
config_template: ../templates/InitConfiguration.yml.jinja2 # config_template: ../templates/InitConfiguration.yml.jinja2
config: # config:
bootstrap_token: "{{ secrets.bootstrap_token }}" # bootstrap_token: "{{ secrets.bootstrap_token }}"
node_ip: 10.0.2.11 # node_ip: 10.0.2.11
node_name: control # node_name: control
vars_files: # vars_files:
- ../vault.yml # - ../vault.yml
tasks: # tasks:
- name: Test for cluster. # - name: Test for cluster.
kubernetes.core.k8s_cluster_info: # kubernetes.core.k8s_cluster_info:
register: api_status # register: api_status
ignore_errors: true # ignore_errors: true
- name: Copy configuration over. # - name: Copy configuration over.
ansible.builtin.template: # ansible.builtin.template:
src: "{{ config_template }}" # src: "{{ config_template }}"
dest: InitConfiguration.yml # dest: InitConfiguration.yml
mode: preserve # mode: preserve
when: "api_status.failed" # when: "api_status.failed"
- name: Initialize cluster. # - name: Initialize cluster.
ansible.builtin.command: # ansible.builtin.command:
kubeadm init --config InitConfiguration.yml # kubeadm init --config InitConfiguration.yml
changed_when: true # changed_when: true
when: "api_status.failed" # when: "api_status.failed"
- name: Apply the Kubernetes config to the shell. # - name: Apply the Kubernetes config to the shell.
ansible.builtin.lineinfile: # ansible.builtin.lineinfile:
path: /etc/environment # path: /etc/environment
line: 'KUBECONFIG=/etc/kubernetes/admin.conf' # line: 'KUBECONFIG=/etc/kubernetes/admin.conf'
when: "api_status.failed" # when: "api_status.failed"
- name: Join worker nodes to cluster. # - name: Join worker nodes to cluster.
hosts: [node-a, node-b] # hosts: [node-a, node-b]
vars: # vars:
join_template: ../templates/JoinConfiguration.yml.jinja2 # join_template: ../templates/JoinConfiguration.yml.jinja2
join_control_ip: 10.0.2.11 # join_control_ip: 10.0.2.11
join_bootstrap_token: "{{ secrets.bootstrap_token }}" # join_bootstrap_token: "{{ secrets.bootstrap_token }}"
vars_files: # vars_files:
- ../vault.yml # - ../vault.yml
tasks: # tasks:
- name: Copy join configuration over. # - name: Copy join configuration over.
vars: # vars:
join_worker_ip: "{{ ansible_default_ipv4.address }}" # join_worker_ip: "{{ ansible_default_ipv4.address }}"
join_worker_name: "{{ ansible_hostname }}" # join_worker_name: "{{ ansible_hostname }}"
ansible.builtin.template: # ansible.builtin.template:
src: "{{ join_template }}" # src: "{{ join_template }}"
dest: JoinConfiguration.yml # dest: JoinConfiguration.yml
mode: preserve # mode: preserve
- name: Join the nodes. # - name: Join the nodes.
ansible.builtin.command: # ansible.builtin.command:
kubeadm join --config JoinConfiguration.yml # kubeadm join --config JoinConfiguration.yml
changed_when: true # changed_when: true
- name: Install Helm Diff. # - name: Install Helm Diff.
gather_facts: false # gather_facts: false
hosts: control # hosts: control
tasks: # tasks:
- name: Install it. # - name: Install it.
kubernetes.core.helm_plugin: # kubernetes.core.helm_plugin:
plugin_path: https://github.com/databus23/helm-diff # plugin_path: https://github.com/databus23/helm-diff
state: present # state: present
- name: Install CNI. - name: Install CNI.
gather_facts: false gather_facts: false
hosts: control hosts: control
tasks: tasks:
- name: Assign nodes as workers.
kubernetes.core.k8s:
state: patched
kind: Node
name: "{{ item }}"
definition:
metadata:
labels:
node-role.kubernetes.io/worker: worker
loop: [node-a, node-b]
- name: Create Flannel namespace. - name: Create Flannel namespace.
kubernetes.core.k8s: kubernetes.core.k8s:
state: present state: present
@@ -179,67 +193,20 @@
value: "true" value: "true"
effect: NoSchedule effect: NoSchedule
- name: Install Hetzner Cloud Controller. - name: Install `nginx` Controller.
gather_facts: false gather_facts: false
hosts: control hosts: control
vars_files: vars_files:
- ../vault.yml - ../vault.yml
- ../secrets/tf_outputs.yml - ../secrets/tf_outputs.yml
tasks: tasks:
- name: Create `hcloud` secret. - name: Remove schedule taint to nodes.
kubernetes.core.k8s:
name: hcloud
namespace: kube-system
kind: Secret
state: present
definition:
apiVersion: v1
kind: Secret
metadata:
name: hcloud
namespace: kube-system
type: Opaque
data:
token: "{{ secrets.hcloud_token | b64encode }}"
network: "{{ private_network_id.value | b64encode }}"
- name: Add Cloud Controller repository.
kubernetes.core.helm_repository:
name: hcloud
url: https://charts.hetzner.cloud
state: present
- name: Copy over values file.
vars:
values_template: ../templates/HCCMValues.yml.jinja2
ansible.builtin.template:
src: "{{ values_template }}"
dest: HCCMValues.yml
mode: preserve
- name: Install it.
kubernetes.core.helm:
name: hccm
chart_ref: hcloud/hcloud-cloud-controller-manager
namespace: kube-system
state: present
update_repo_cache: true
force: true
values_files: [HCCMValues.yml]
- name: Install `nginx` Controller.
gather_facts: false
hosts: control
tasks:
# This makes sure Hetzer gives the nodes a proper Provider ID.
- name: Add schedule taint to nodes.
kubernetes.core.k8s_taint: kubernetes.core.k8s_taint:
state: present state: absent
name: "{{ item }}" name: "{{ item }}"
taints: taints:
- key: node.cloudprovider.kubernetes.io/uninitialized - key: node.cloudprovider.kubernetes.io/uninitialized
value: "true" value: true
effect: NoSchedule effect: NoSchedule
loop: [node-a, node-b] loop: [node-a, node-b]
@@ -252,6 +219,9 @@
- name: Copy over values file. - name: Copy over values file.
vars: vars:
values_template: ../templates/IngressValues.yml.jinja2 values_template: ../templates/IngressValues.yml.jinja2
load_balancer_name: "{{ variables.load_balancer_name }}"
network_zone: "{{ variables.network_zone }}"
certificate_name: "test"
ansible.builtin.template: ansible.builtin.template:
src: "{{ values_template }}" src: "{{ values_template }}"
dest: IngressValues.yml dest: IngressValues.yml
@@ -265,28 +235,3 @@
state: present state: present
update_repo_cache: true update_repo_cache: true
values_files: [IngressValues.yml] values_files: [IngressValues.yml]
- name: Connect DNS to the Load Balancer.
gather_facts: false
vars_files:
- ../vault.yml
hosts: localhost
tasks:
- name: Get the IP address of the LB.
hetzner.hcloud.load_balancer_info:
api_token: "{{ secrets.hcloud_token }}"
name: "hetzner-lb"
register: hetzner_lb_info
- name: Connect DNS.
vars:
ip_address: "{{ hetzner_lb_info.hcloud_load_balancer_info[0].ipv4_address }}"
hetzner.hcloud.zone_rrset:
api_token: "{{ secrets.hcloud_token }}"
zone: "{{ secrets.zone_name }}"
name: "{{ item }}"
type: A
records:
- value: "{{ ip_address }}"
state: present
loop: ["*", "@"]

View File

@@ -1,51 +0,0 @@
apiVersion: apps/v1
kind: Deployment
metadata:
name: hello-app
spec:
replicas: 2
selector:
matchLabels:
app: hello
template:
metadata:
labels:
app: hello
spec:
containers:
- name: hello
image: hashicorp/http-echo
args: ["-text=Hello from Kubernetes!"]
ports:
- containerPort: 5678
---
apiVersion: v1
kind: Service
metadata:
name: hello-service
spec:
selector:
app: hello
ports:
- port: 80
targetPort: 5678
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: hello-ingress
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /
spec:
ingressClassName: nginx
rules:
- host: hello.maximhutz.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: hello-service
port:
number: 80

View File

@@ -4,14 +4,13 @@ controller:
kind: DaemonSet kind: DaemonSet
service: service:
annotations: annotations:
load-balancer.hetzner.cloud/name: "hetzner-lb" load-balancer.hetzner.cloud/name: {{ load_balancer_name }}
load-balancer.hetzner.cloud/location: "fsn1"
load-balancer.hetzner.cloud/type: "lb11" load-balancer.hetzner.cloud/type: "lb11"
load-balancer.hetzner.cloud/ipv6-disabled: "true" load-balancer.hetzner.cloud/ipv6-disabled: "true"
load-balancer.hetzner.cloud/use-private-ip: "true" load-balancer.hetzner.cloud/use-private-ip: "true"
load-balancer.hetzner.cloud/protocol: "https" load-balancer.hetzner.cloud/protocol: "https"
load-balancer.hetzner.cloud/network-zone: "eu-central" load-balancer.hetzner.cloud/network-zone: {{ network_zone }}
load-balancer.hetzner.cloud/http-certificates: "Main Certificate" load-balancer.hetzner.cloud/http-certificates: {{ certificate_name }}
load-balancer.hetzner.cloud/http-redirect-http: "true" load-balancer.hetzner.cloud/http-redirect-http: "true"
enableHttp: false enableHttp: false
targetPorts: targetPorts:

View File

@@ -51,3 +51,18 @@ resource "hcloud_server" "server" {
depends_on = [hcloud_network_subnet.subnet] depends_on = [hcloud_network_subnet.subnet]
} }
resource "hcloud_load_balancer" "lb" {
name = "lb-hetzner"
load_balancer_type = "lb11"
network_zone = "eu-central"
}
resource "hcloud_load_balancer_target" "load_balancer_target" {
for_each = hcloud_server.server
type = "server"
load_balancer_id = hcloud_load_balancer.lb.id
use_private_ip = true
server_id = each.value.id
}

View File

@@ -20,8 +20,9 @@ resource "hcloud_network_route" "gateway" {
gateway = local.nat-private-ip gateway = local.nat-private-ip
} }
// A managed certificate for the domain, to be used by the load balancer. // Attach the load blaancer to the private network.
resource "hcloud_managed_certificate" "managed_cert" { resource "hcloud_load_balancer_network" "attachment" {
name = "Main Certificate" load_balancer_id = hcloud_load_balancer.lb.id
domain_names = ["*.${local.domain}", "${local.domain}"] subnet_id = hcloud_network_subnet.subnet.id
ip = local.lb-private-ip
} }

32
terraform/routing.tf Normal file
View File

@@ -0,0 +1,32 @@
data "hcloud_zone" "zone" {
name = local.domain
}
// Attach the load balancer to the domain.
resource "hcloud_zone_rrset" "records" {
for_each = toset(["@", "*"])
zone = data.hcloud_zone.zone.name
name = each.value
type = "A"
ttl = 60
records = [{ value = hcloud_load_balancer.lb.ipv4 }]
change_protection = false
}
// A managed certificate for the domain, to be used by the load balancer.
resource "hcloud_managed_certificate" "main" {
name = local.certificate_name
domain_names = ["*.${local.domain}", "${local.domain}"]
}
resource "hcloud_load_balancer_service" "load_balancer_service" {
load_balancer_id = hcloud_load_balancer.lb.id
protocol = "https"
http {
sticky_sessions = true
certificates = [hcloud_managed_certificate.main.id]
redirect_http = true
}
}

View File

@@ -11,6 +11,8 @@ locals {
} }
domain = "maximhutz.com" domain = "maximhutz.com"
certificate_name = "Main Certificate"
} }
variable "public_key_file" { variable "public_key_file" {

View File

@@ -1,38 +1,40 @@
$ANSIBLE_VAULT;1.1;AES256 $ANSIBLE_VAULT;1.1;AES256
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6239383662613562396562326238663733633962303365630a663235633337613137636563353932 3035353733653832316165356663303264396439393232390a666465306363356335383734616438
31626533303532613566356638346663643337393839653536613866386339666537643435396133 37313833663535356163616666343933303363383462353064633538333433373431663161626230
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33343338333234383937363064616364623864353338653366623333356336333939656433373663 35653139613737336431323733616533363531616131613965663534343938396661336331376633
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