The Kubernetes platform.
The Package manager.
The Open Service Broker.
If you have a pure host, it can be a cloud server, bare metal server, virtual machine, or even your laptop. Then this chapter is very suitable for you.
Drycc is expected to work on most modern Linux systems. Some OSS have specific requirements:
If you want to add more Linux distribution support, please submit a issue on github or submit PR directly.
Some basic software needs to be installed before installing drycc workflow.
K8s requires a large number of ports. If you are not sure what they are, please close the local firewall or open these ports. At the same time, because k8s you need system time, you need to ensure that the system time is correct.
The command used to install open-iscsi differs depending on the Linux distribution. We recommend using Ubuntu as the guest OS image since it contains open-iscsi already. You may need to edit the cluster security group to allow SSH access. For SUSE and openSUSE, use this command:
$ zypper install open-iscsi
For Debian and Ubuntu, use this command:
$ apt-get install open-iscsi
For RHEL, CentOS, and EKS with EKS Kubernetes Worker AMI with AmazonLinux2 image, use this command:
$ yum install iscsi-initiator-utils
The command used to install a NFSv4 client differs depending on the Linux distribution.
For Debian and Ubuntu, use this command:
$ apt-get install nfs-common
For RHEL, CentOS, and EKS with EKS Kubernetes Worker AMI with AmazonLinux2 image, use this command:
$ yum install nfs-utils
For Debian and Ubuntu, use this command:
$ apt-get install curl
For RHEL, CentOS, and EKS with EKS Kubernetes Worker AMI with AmazonLinux2 image, use this command:
$ yum install curl
For Debian and Ubuntu, use this command:
$ apt-get install bc
For RHEL, CentOS, and EKS with EKS Kubernetes Worker AMI with AmazonLinux2 image, use this command:
$ yum install bc
Hardware requirements scale based on the size of your deployments. Minimum recommendations are outlined here.
This configuration only contains the minimum requirements that can meet the operation.
Drycc performance depends on the performance of the database. To ensure optimal speed, we recommend using an SSD when possible. Disk performance will vary on ARM devices utilizing an SD card or eMMC.
Drycc needs a root domain name under your full control and points this domain name to the server to be installed.
Suppose there is a wildcard domain pointing to the current server to install drycc, which is the name *.dryccdoman.com
.
We need to set the PLATFORM_DOMAIN
environment variables before installation.
$ export PLATFORM_DOMAIN=dryccdoman.co
Of course, if it is a test environment, we can also use nip.io
, an IP to domain name service.
For example, your host IP is 59.46.3.190
, we will get the following domain name 59.46.3.190.nip.io
$ export PLATFORM_DOMAIN=59.46.3.190.nip.io
Before installation, please make sure whether your installation environment is a public network. If it is an intranet environment and there is no public IP, you need to disable the automatic certificate.
$ export CERT_MANAGER_ENABLED=false
Then you can use the installation script available at https://drycc.cc/install.sh to install drycc as a service on systemd and openrc based systems.
$ curl -sfL https://drycc.cc/install.sh | bash -
Important
If you are in China, you need to use mirror acceleration:
$ curl -sfL https://drycc.cc/install.sh | INSTALL_DRYCC_MIRROR=cn bash -
Node can be a simple agent or a server; Server has the function of agent. Multiple servers have high availability, but the number of servers should not exceed 7 at most. There is no limit to the number of agents.
$ cat /var/lib/rancher/k3s/server/node-token
K1078e7213ca32bdaabb44536f14b9ce7926bb201f41c3f3edd39975c16ff4901ea::server:33bde27f-ac49-4483-b6ac-f4eec2c6dbfa
We assume that the IP address of the cluster master is 192.168.6.240
, in that way.
$ export K3S_URL=https://192.168.6.240:6443
$ export K3S_TOKEN="K1078e7213ca32bdaabb44536f14b9ce7926bb201f41c3f3edd39975c16ff4901ea::server:33bde27f-ac49-4483-b6ac-f4eec2c6dbfa"
Important
If you are in China, you need to use mirror acceleration:
$ export INSTALL_DRYCC_MIRROR=cn
$ curl -sfL https://drycc.cc/install.sh | bash -s - install_k3s_server
$ curl -sfL https://drycc.cc/install.sh | bash -s - install_k3s_agent
When using this method to install drycc, the following environment variables can be used to configure the installation:
ENVIRONMENT VARIABLE | DESCRIPTION |
---|---|
PLATFORM_DOMAIN | Required item, specify drycc's domain name |
DRYCC_ADMIN_USERNAME | Required item, specify drycc's admin username |
DRYCC_ADMIN_PASSWORD | Required item, specify drycc's admin password |
CERT_MANAGER_ENABLED | Whether to use automatic certificate. It is true by default |
CHANNEL | By default, stable channel will be installed. You can also specify testing |
REGISTRIES_FILE | The registers.yaml file path used by drycc registry |
KUBE_API_SERVER_ADDRESS | Set with the IP address of the loadbalancer that was in front of kube-apiserver, The default is the IP address of the current node |
KUBE_API_SERVER_PORT | Set with the PORT of the loadbalancer that was in front of kube-apiserver, which is 6443 by default |
METALLB_CONFIG_FILE | The metallb config file path, layer 2 network is used by default |
INSTALL_DRYCC_MIRROR | Specify the accelerated mirror location. Currently, only cn is supported |
CONTROLLER_APP_STORAGE_CLASS | StorageClass allocated by drycc volumes ; default storageClass is used by default |
REDIS_PERSISTENCE_SIZE | The size of the persistence space allocated to redis , which is 5Gi by default |
REDIS_PERSISTENCE_STORAGE_CLASS | StorangeClass of redis ; default storangeclass is used by default |
MINIO_PERSISTENCE_SIZE | The size of the persistence space allocated to minio , which is 20Gi by default |
MINIO_PERSISTENCE_STORAGE_CLASS | StorangeClass of minio ; default storangeclass is used by default |
MONITOR_GRAFANA_PERSISTENCE_SIZE | The size of the persistence space allocated to monitor.grafana , which is 5Gi by default |
MONITOR_GRAFANA_PERSISTENCE_STORAGE_CLASS | StorangeClass of monitor grafana; default storangeclass is used by default |
INFLUXDB_PERSISTENCE_SIZE | The size of the persistence space allocated to influxdb , which is 5Gi by default |
INFLUXDB_PERSISTENCE_STORAGE_CLASS | StorangeClass of influxdb ; default storangeclass is used by default |
RABBITMQ_PERSISTENCE_SIZE | The size of the persistence space allocated to rabbitmq , which is 5Gi by default |
RABBITMQ_PERSISTENCE_STORAGE_CLASS | StorangeClass of rabbitmq ; default storangeclass is used by default |
DATABASE_PERSISTENCE_SIZE | The size of the persistence space allocated to database , which is 5Gi by default |
DATABASE_PERSISTENCE_STORAGE_CLASS | StorangeClass of database ; default storangeclass is used by default |
HELMBROKER_PERSISTENCE_SIZE | The size of the persistence space allocated to helmbroker , which is 5Gi by default |
HELMBROKER_PERSISTENCE_STORAGE_CLASS | StorangeClass of helmbroker ; default storangeclass is used by default |
K3S_DATA_DIR | The config of k3s data dir; If not set, the default path is used |
DEFAULT_STORAGE_CLASS | K3s default stroageclass, If not set, the openebs-hostpath stroageclass is used |
LOCAL_PROVISIONER_PATH | Local path storage path, If not set, the /var/openebs/local path is used |
ACME_SERVER | ACME Server url, default use letsencrypt |
ACME_EAB_KEY_ID | The key ID of which your external account binding is indexed by the external account |
ACME_EAB_KEY_SECRET | The key Secret of which your external account symmetric MAC key |
Since the installation script will install k3s, other environment variables can refer to k3s installation environment variables.
If you installed drycc using an installation script, you can uninstall the entire drycc using this script.
$ curl -sfL https://drycc.cc/uninstall.sh | bash -