213 lines
8 KiB
Markdown
213 lines
8 KiB
Markdown
# Nextcloud Operator
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Nextcloud operator handles the deployment of a Nextcloud HA instance
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plus the LibreOffice online application in a kubernetes cluster.
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Operator main taks:
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* Defines a Custom Resource Definition (CRD) that contains the configuration
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options required to define a Nextcloud HA instance.
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* Creates Nextcloud HA instances when a new resource is created.
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* Updates Nextcloud configuration to when a change to the CRD is detected.
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* Checks for new Nextcloud versions and notifies the admin if there's
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a new compatible version.
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* Handles nextcloud upgrades
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## Resources
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Every time a new `Nextcloud` resource is created, the operator will create
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a set of kubernetes resources:
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* php-fpm deployment: Handles the PHP processing part of the Nextcloud application.
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* Shares a volume with the `nginx` deployment.
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* Is available to the cluster via the `php-fpm-service` by using the php-fpm label.
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* Spins `php_fpm_replicas` number of replicas defined in the `Nextcloud` resource.
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* php-fpm service: Handles the load balancing of the `php-fpm` deployment containers.
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* Nginx deployment: Handles de `HTTP` requests for the Nextcloud instances.
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* Shares a volume with the `php-fpm` deployment.
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* Uses the `php-fpm-service` service to communicate with the `php-fpm` instances.
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* Is exposed to the cluster via the `http-service` by using the http-service label.
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* Spins `http_replicas` number of replicas defined in the `Nextcloud` resource.
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* http-service: Handles the load balancing of the Nginx deployment containers.
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* coolwsd deployment: Handles the LibreOffice online server for Nextcloud.
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* Creates `coolwsd_replicas` number of containers defined in the
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`Nextcloud` resource.
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* Is exposed to the cluster via the `coolwsd-service` by using the coolwsd-service label.
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* Spins `coolwsd_replicas` number of replicas defined in the `Nextcloud` resource.
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* coolwsd-service: Handles the load balancing of the coolwsd deployment containers.
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* redis deployment: Handles the redis database.
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* Is exposed to the cluster via the `redis-service` by using the redis-service label.
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* Spins `redis_replicas` number of replicas defined in the `Nextcloud` resource.
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* redis-service: Handles the load balancing of the redis deployment containers.
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* Database and IdM are assumed to be external services and are outside of the
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Nextcloud operator scope.
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## CRD:
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```
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apiVersion: apiextensions.k8s.io/v1
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kind: CustomResourceDefinition
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metadata:
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name: nextcloud.operators.imcsk8.chavero.com.mx
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spec:
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group: operators.imcsk8.chavero.com.mx
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versions:
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- name: v1 # it's possible to provide multiple versions of a CRD
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served: true # it's possible to disable a CRD
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storage: true # there can be multiple versions but only one can be used to store the objects
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schema:
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openAPIV3Schema:
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type: object
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properties:
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spec:
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type: object
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properties:
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nextcloud_path:
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type: string
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default: "/usr/share/nginx/html"
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nextcloud_occ:
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type: string
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default: "/usr/share/nginx/html/occ"
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nginx_path:
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type: string
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default: "/etc/nginx/conf.d" # FIXME: Set PHP version from Debian version: 7.4 for Debian 11, 7.3 for Debian 10
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php_ini_path:
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type: string
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default: "/etc"
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php_pool_path:
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type: string
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default: "/etc/php-fpm.d"
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php_fpm_service:
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type: string
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default: "php-fpm"
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document_root:
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type: string
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default: "/usr/share/nginx/html"
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web_user:
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type: string
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default: "nginx"
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pg_hba_conf:
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type: string
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default: "/var/lib/pgsql/data/pg_hba.conf"
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redis_dir:
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type: string
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default: "/etc"
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redis_user:
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type: string
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default: "nextcloud"
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redis_url:
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type: string
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default: "https://127.0.0.1"
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redis_password:
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type: string
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default: "2XenoNNBtLJqrELTfmCLum/42Guz72Ym0RPMxXh5+pT"
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nextcloud_version:
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type: string
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default: "24.0.3"
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nextcloud_checksum:
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type: string
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default: "sha256:4820808f799146853604e1fa27d7f292449018a44dc73bf928a97b02028318ba"
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nextcloud_database:
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type: string
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default: "nextcloud"
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nextcloud_database_user:
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type: string
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default: "nextcloud"
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nextcloud_database_user_password:
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type: string
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default: "nVdUe6%Ua9c,Rd.8BVugPHPm2yqUSXWCAy%1GXOQGn8tg9F?k%R"
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nextcloud_admin_user:
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type: string
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default: "nextcloud_admin"
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nextcloud_admin_password:
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type: string
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default: "prueba123"
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nextcloud_fqdn:
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type: string
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default: ""
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nextcloud_domain_name:
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type: string
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default: "nextcloud"
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notify_push_nextcloud_url:
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type: string
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default: "http://localhost"
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key_size:
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type: integer
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default: 4096
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key_type:
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type: string
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default: "RSA" # Others include DSA, ECC, Ed25519, Ed448, X25519, X448
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country_name:
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type: string
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default: "MX"
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email_address:
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type: string
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default: "ssl@example.com"
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organization_name:
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type: string
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default: "Nextcloud"
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server_hostname:
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type: string
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default: "example.com"
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redis_cert_private_key:
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type: string
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default: "/etc/pki/tls/private/redis-cert-private-key.pem"
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redis_cert:
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type: string
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default: "/etc/pki/tls/certs/redis-self-cert.crt"
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redis_csr:
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type: string
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default: "/etc/pki/tls/certs/redis-self.csr"
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generate_self_signed_cert: true
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nginx_ssl_cert_file:
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type: string
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default: "/etc/pki/tls/private/nginx-self-signed.crt"
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nginx_ssl_key_file:
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type: string
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default: "/etc/pki/tls/certs/nginx-self-signed.key"
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nginx_ssl_csr_file:
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type: string
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default: "/etc/pki/tls/certs/nginx-self-signed.csr"
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code_enable_ssl:
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type: boolean
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default: false
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code_enable_ssl_termination:
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type: boolean
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default: true
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code_ssl_key:
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type: string
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default: ""
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code_ssl_cert:
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type: string
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default: ""
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code_ssl_ca:
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type: string
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default: ""
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php_fpm_replicas:
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type: integer
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default: 2
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http_replicas:
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type: integer
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default: 2
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coolwsd_replicas:
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type: integer
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default: 2
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redis_replicas:
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type: integer
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default: 2
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scope: Namespaced
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names:
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plural: nextclouds
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singular: nextcloud
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kind: Nextcloud
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shortNames: nc
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```
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