> ## Documentation Index > Fetch the complete documentation index at: https://docs.ankra.ai/llms.txt > Use this file to discover all available pages before exploring further. # Create an AWS EC2 cluster (browser session) > Browser session authentication; RBAC permission `clusters.create`. Creates a self-managed k3s / kubeadm cluster on EC2 (ADR 0015), in a VPC Ankra creates when `vpc_id` is omitted (from `network_ip_range` over `availability_zones`, NAT-gateway egress by default) or in the customer's VPC when `vpc_id`, `node_subnet_ids` and `bastion_subnet_id` are given. The preflight runs first and the first error item is the refusal. Defaults: t3.medium nodes, a t3.small bastion, Ubuntu 24.04 on amd64, a 40 GiB encrypted gp3 root volume, one control plane and one worker, Cilium for either distribution, 10.0.0.0/16 for a created VPC over one zone (three when `control_plane_count` >= 3). `egress_mode` omitted is `nat_gateway` for a created VPC and, for an adopted one, resolved by preflight (`existing` when every node subnet already has egress, `bastion_nat` when none has and none carries a foreign instance). Flannel is accepted but cannot enforce the IMDS guard, so the preflight reports a warning for it; the AWS cloud-controller-manager is always installed. Answers 404 while the organisation's `aws_provider` feature flag is off. ## OpenAPI ````yaml https://platform.ankra.app/openapi.json post /org/clusters/aws openapi: 3.1.0 info: title: FastAPI version: 0.1.0 servers: - url: https://platform.ankra.app security: [] tags: - name: Organisation IAM description: >- Custom organisation roles and scoped role assignments for member and service-account identities. - name: Clusters description: Create, inspect and manage clusters, and the stacks deployed on them. - name: Managed Clusters description: Provider-managed control planes, driven through one common surface. - name: Imported Clusters description: Clusters that already existed and were connected to Ankra. - name: Cluster Access description: Kubeconfigs, service-account tokens and per-cluster access grants. - name: Kubernetes description: Read and act on the Kubernetes objects inside a cluster. - name: AWS Clusters description: >- Provision and manage self-managed k3s / kubeadm clusters on AWS EC2 in your own VPC. - name: Ankra Cloud Clusters description: >- Provision and manage self-managed kubeadm / k3s clusters on Ankra Cloud servers: a private network, a NAT router and a bastion per cluster. - name: DigitalOcean Clusters description: Provision and manage DigitalOcean Kubernetes clusters. - name: Hetzner Clusters description: Provision and manage Hetzner Kubernetes clusters. - name: OVH Clusters description: Provision and manage OVH Kubernetes clusters. - name: Scaleway Clusters description: Provision and manage Scaleway Kapsule clusters. - name: UpCloud Clusters description: Provision and manage UpCloud Kubernetes clusters. - name: Applications description: Deploy, configure and observe applications across the fleet. - name: Pipelines description: Pipeline definitions and the approval of the authority they declare. - name: Backups description: >- Backup vaults, restore points, protection posture and captures for stacks and application deployments; a completed capture is not a verified restore. - name: Stack Profiles description: Reusable stack definitions, their versions and sharing. - name: Services description: >- Versioned service packages and explicit sharing. Runtime admission is separate from publication. - name: Charts description: Browse the chart catalogue behind stacks and addons. - name: Helm description: Helm registries, credentials and the charts they expose. - name: Executions description: Long-running platform executions and their jobs. - name: Operations description: Cancel in-flight cluster operations and their jobs. - name: Chat description: Conversational sessions, plans and confirmable actions. - name: AI Management description: >- Customer agent lifecycle, authenticated identity and organisation automation controls. - name: AI Agent Runs description: Autonomous agent runs and their outcomes. - name: AI Tickets description: The AI ticket board, its sync connections and settings. - name: AI Playbooks description: Reusable playbooks the AI lanes execute. - name: AI Conditions description: Conditions that gate AI autonomy. - name: AI Remediation description: >- The organisation's auto-remediation policy: what the AI lanes may fix by themselves, and who approves the rest. - name: AI Engineering Handoffs description: Work the AI lanes escalate to a human engineer. - name: AI Environment description: The environment and base stacks AI demos deploy into. - name: Security description: Findings, advisories, SBOMs, compliance and posture. - name: Cost description: Cluster and fleet cost, rate cards and cost settings. - name: Decisions description: >- The decision ledger behind the Security and Cost queues: proposals a surface computed, the approve and set-aside decisions people took on them, and the receipts of running them. - name: Billing description: Subscription and spend caps. - name: Organisation description: Members, invitations, audit logs and organisation settings. - name: Account Tokens description: Personal access tokens for the API and CLI. - name: Credentials description: The shared credential store. - name: AWS Credentials description: >- AWS credentials: access keys or CloudFormation-onboarded STS roles for cost, EKS and self-managed provisioning. - name: Ankra Cloud Credentials description: >- Ankra Cloud API tokens, shared by the self-managed and managed Ankra Cloud lanes. - name: Azure Credentials description: Azure credentials and SSH keys. - name: DigitalOcean Credentials description: DigitalOcean credentials and SSH keys. - name: Hetzner Credentials description: Hetzner credentials and SSH keys. - name: OVH Credentials description: OVH credentials and SSH keys. - name: Scaleway Credentials description: Scaleway credentials. - name: UpCloud Credentials description: UpCloud credentials and SSH keys. - name: Data Source Credentials description: Credentials for metrics and log sources. - name: DNS Credentials description: Credentials for DNS providers. - name: Object Storage Buckets description: >- Buckets Ankra creates and manages on an organisation's own provider credentials. - name: DNS description: DNS zones and records, including custom organisation zones. - name: Cloudflare description: Cloudflare domains and the credentials behind them. - name: Variables description: Organisation- and cluster-scoped variables. - name: SOPS description: Encrypt and decrypt values with the organisation SOPS config. - name: Alerts description: Alert integrations and ingest credentials. - name: Notifications description: Notification routes and their delivery targets. - name: Support description: Support tickets. - name: AI Settings description: Organisation AI provider, model catalog and per-function model settings paths: /org/clusters/aws: post: tags: - AWS Clusters summary: Create an AWS EC2 cluster (browser session) description: >- Browser session authentication; RBAC permission `clusters.create`. Creates a self-managed k3s / kubeadm cluster on EC2 (ADR 0015), in a VPC Ankra creates when `vpc_id` is omitted (from `network_ip_range` over `availability_zones`, NAT-gateway egress by default) or in the customer's VPC when `vpc_id`, `node_subnet_ids` and `bastion_subnet_id` are given. The preflight runs first and the first error item is the refusal. Defaults: t3.medium nodes, a t3.small bastion, Ubuntu 24.04 on amd64, a 40 GiB encrypted gp3 root volume, one control plane and one worker, Cilium for either distribution, 10.0.0.0/16 for a created VPC over one zone (three when `control_plane_count` >= 3). `egress_mode` omitted is `nat_gateway` for a created VPC and, for an adopted one, resolved by preflight (`existing` when every node subnet already has egress, `bastion_nat` when none has and none carries a foreign instance). Flannel is accepted but cannot enforce the IMDS guard, so the preflight reports a warning for it; the AWS cloud-controller-manager is always installed. Answers 404 while the organisation's `aws_provider` feature flag is off. operationId: create_aws_cluster_browser parameters: - description: Must match the ankra_csrf browser cookie. in: header name: X-Ankra-CSRF required: true schema: type: string requestBody: content: application/json: schema: $ref: '#/components/schemas/CreateAwsClusterRequest' required: true responses: '200': content: application/json: schema: $ref: '#/components/schemas/AwsCreateClusterResponse' description: Successful response '400': content: application/json: schema: $ref: '#/components/schemas/ContractDetailError' description: Invalid request '401': content: application/json: schema: $ref: '#/components/schemas/ContractDetailError' description: Unauthenticated '403': content: application/json: schema: $ref: '#/components/schemas/ContractDetailError' description: Permission or CSRF check failed '404': content: application/json: schema: $ref: '#/components/schemas/ContractDetailError' description: Resource not found '409': content: application/json: schema: $ref: '#/components/schemas/ContractDetailError' description: Conflicting or unsafe lifecycle state '422': content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' description: Request validation failed '500': content: application/json: schema: $ref: '#/components/schemas/ContractDetailError' description: Provider or internal failure security: - SessionCookie: [] components: schemas: CreateAwsClusterRequest: description: >- POST /clusters/aws body. Two network shapes (ADR 0015 §3): omit vpc_id and Ankra creates the VPC from network_ip_range over availability_zones (one public /24 and one private /20 per zone, an internet gateway, and NAT gateways as the default egress), all torn down with the cluster; pass vpc_id with node_subnet_ids and bastion_subnet_id to adopt an existing VPC, whose network Ankra never modifies. Nodes never receive a public IP; the bastion holds the elastic IP and is the SSH hop (and the NAT instance in bastion_nat mode). properties: name: type: string description: anyOf: - type: string - type: 'null' credential_id: type: string format: uuid description: >- An organisation aws credential: a keys credential, or a role onboarded with scope provisioning or self_managed (cost-scoped roles are refused). ssh_key_credential_id: type: string format: uuid region: type: string description: Region slug, validated against ec2:DescribeRegions. vpc_id: anyOf: - type: string - type: 'null' description: >- An existing VPC to adopt; node_subnet_ids and bastion_subnet_id are then required and network_ip_range / availability_zones / nat_gateway_single_zone are refused. Omitted (or empty): Ankra creates the VPC (network_ownership created). node_subnet_ids: anyOf: - type: array items: type: string minItems: 1 - type: 'null' description: >- Adopted VPC only: private subnets the nodes spread across; one or more, their zones become the cluster's zone pool. Refused (422) when no vpc_id is given - a created VPC lays out its own subnets. bastion_subnet_id: anyOf: - type: string - type: 'null' description: >- Adopted VPC only: a public subnet (internet-gateway default route) for the bastion. Refused (422) when no vpc_id is given. network_ip_range: type: string default: 10.0.0.0/16 description: >- Created VPC only: the IPv4 CIDR the VPC is created with, /16 to /20 as a network address; it must hold a private /20 and a public /24 per availability zone (the preflight's cidr item says what it holds). Refused (422) alongside vpc_id. availability_zones: anyOf: - type: array items: type: string - type: 'null' description: >- Created VPC only: the zones the VPC is laid out over, in the order the spread walks them (the bastion and the first control plane land in the first). Each must exist and be available in the region; more than one needs control_plane_count >= 3. Omitted: the preflight picks one zone when control_plane_count < 3 and three otherwise, from the region's available zones in name order, and reports them as resolved_availability_zones. Refused (422) alongside vpc_id. nat_gateway_single_zone: type: boolean default: false description: >- Created VPC with nat_gateway egress only: false creates one NAT gateway (and elastic IP) per zone; true creates one in the first zone that every private subnet routes through - cheaper, one egress failure domain. Refused (422) when true alongside vpc_id. egress_mode: anyOf: - type: string enum: - nat_gateway - bastion_nat - existing description: >- Which modes apply depends on the network shape. Created VPC: nat_gateway (default; Ankra-created NAT gateways with their own elastic IPs) or bastion_nat (the bastion is the NAT instance); existing is refused (422). Adopted VPC: omitted is resolved by preflight; existing keeps the subnets' NAT routing; bastion_nat makes the bastion the NAT instance behind one Ankra-owned route table and is refused when a node subnet carries instances Ankra did not create; nat_gateway is refused (422) because it would re-point the customer's route tables. - type: 'null' bastion_instance_type: type: string default: t3.small bastion_allowed_ips: type: array items: type: string description: >- IPv4 CIDRs allowed to SSH to the bastion. Optional: omitted or empty means 0.0.0.0/0 (open to everyone; key-only, password login off, sshd rate-limited on the host). Name your own CIDRs to restrict it; preflight reports the exposure as bastion_ssh_exposure. control_plane_count: type: integer default: 1 minimum: 1 maximum: 9 description: >- At least 3 when the cluster spans more than one availability zone (an adopted VPC's node subnets, or a created VPC's availability_zones); it also decides how many zones a created VPC defaults to (1 below 3, 3 otherwise). control_plane_type: type: string default: t3.medium worker_count: default: 1 maximum: 100 minimum: 0 type: integer worker_type: type: string default: t3.medium node_groups: anyOf: - type: array items: $ref: '#/components/schemas/AwsCreateNodeGroupRequest' - type: 'null' distribution: type: string enum: - k3s - kubeadm default: kubeadm kubernetes_version: anyOf: - type: string - type: 'null' etcd_topology: type: string enum: - stacked - external default: stacked etcd_node_count: type: integer default: 3 etcd_type: type: string default: t3.medium cni: type: string enum: - flannel - calico - cilium default: cilium description: >- Defaults to cilium for both distributions: the AWS stack's IMDS guard is a network policy only Cilium and Calico enforce. flannel is accepted with a preflight warning; kubeadm requires cilium. cni_features: $ref: '#/components/schemas/AwsCNIFeatures' k3s_disabled_components: anyOf: - type: array items: type: string - type: 'null' ubuntu_series: type: string default: '24.04' architecture: type: string enum: - amd64 default: amd64 description: >- arm64 is refused with a 422 naming the pending image-catalogue audit (ADR 0015 §6). root_volume_gib: type: integer default: 40 minimum: 20 maximum: 2000 description: Encrypted gp3 root volume of every instance. gitops_credential_name: type: string gitops_repository: type: string gitops_branch: type: string default: master gitops_provider: type: string enum: - github - bitbucket_cloud default: github description: >- GitOps provider of the repository the cluster is bootstrapped onto. Omitted is github, where gitops_repository is owner/name. bitbucket_cloud names the repository by gitops_workspace and gitops_repo_slug (or gitops_repository as workspace/repo_slug) and binds it as a Bitbucket Cloud repository. gitops_workspace: anyOf: - type: string - type: 'null' description: >- Bitbucket Cloud workspace of the GitOps repository. Only with gitops_provider bitbucket_cloud; provided together with gitops_repo_slug. gitops_repo_slug: anyOf: - type: string - type: 'null' description: >- Bitbucket Cloud repository slug of the GitOps repository. Only with gitops_provider bitbucket_cloud; provided together with gitops_workspace. include_networking: type: boolean default: true include_dns: type: boolean default: true retention_policy: type: string enum: - delete - retain default: retain external_cloud_provider: type: boolean default: true description: >- Must be true when present: the AWS cloud-controller-manager is mandatory. environment: anyOf: - type: string - type: 'null' criticality: anyOf: - type: string - type: 'null' required: - name - credential_id - ssh_key_credential_id - region - bastion_allowed_ips type: object AwsCreateClusterResponse: example: cluster_id: 11111111-2222-4333-8444-555555555555 name: aws-prod kind: aws state: creating operation_id: null properties: cluster_id: type: string format: uuid name: type: string kind: type: string const: aws state: type: string operation_id: anyOf: - type: string format: uuid - type: 'null' required: - cluster_id - name - kind - state - operation_id type: object ContractDetailError: example: detail: Cluster not found properties: detail: oneOf: - type: string - additionalProperties: true properties: {} type: object required: - detail type: object HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' title: Detail type: array title: HTTPValidationError type: object AwsCreateNodeGroupRequest: properties: autoscaling: anyOf: - properties: enabled: type: boolean max_count: type: integer min_count: type: integer required: - enabled - min_count - max_count type: object - type: 'null' count: default: 1 maximum: 100 minimum: 0 type: integer instance_type: type: string labels: additionalProperties: type: string type: object name: type: string taints: items: $ref: '#/components/schemas/AwsNodeTaint' type: array availability_zone: anyOf: - type: string description: >- Pins every node of the group to one of the node subnets' zones; omitted spreads the group. - type: 'null' required: - name - instance_type type: object AwsCNIFeatures: properties: ebpf_dataplane: default: false type: boolean hubble: default: false type: boolean kube_proxy_replacement: default: false type: boolean wireguard_encryption: default: false type: boolean type: object ValidationError: properties: loc: items: anyOf: - type: string - type: integer title: Location type: array msg: title: Message type: string type: title: Error Type type: string required: - loc - msg - type title: ValidationError type: object AwsNodeTaint: properties: effect: enum: - NoSchedule - PreferNoSchedule - NoExecute type: string key: type: string value: default: '' type: string required: - key - effect type: object securitySchemes: SessionCookie: description: Browser session. Mutations also require X-Ankra-CSRF. in: cookie name: ankra_session type: apiKey ````