How to add new node as agent? (Make a cluster)

[krismandev]

Describe the bug
I am new in dkron. I still don't know the correct steps to create a cluster where there is one node as a master/server and another node as an agent.

To Reproduce
these are the steps i have done so far:
i have two machine. Sv1 and Sv2.
what is expected is Sv1 as master/server and Sv2 as agent
local IP Sv1 : 10.15.xx.xx
local IP Sv2 : 10.15.xxx.xxx

1. Install dkron in Sv1

• APT Repository deb [trusted=yes] https://repo.distrib.works/apt/ /
• Install the package sudo apt-get install dkron
• Change the config in /etc/dkron/dkron.yaml

# Dkron example configuration file

# This node is running in server mode
server: true

# Provides the number of expected servers in the datacenter.
# Either this value should not be provided or the value must agree with other servers in the cluster.
# When provided, Dkron waits until the specified number of servers are available and then bootstraps the cluster.
# This allows an initial leader to be elected automatically. This flag requires server mode.
bootstrap-expect: 2

# bind-addr: "{{ GetPrivateIP }}:8946"
# log-level: debug
# tags:
#   dc: east
# encrypt: a-valid-key-generated-with-dkron-keygen
retry-join:
  - 10.15.xx.xx
  - 10.15.xxx.xxx
#
# pre-webhook-endpoint: https://hooks.slack.com/services/XXXXXX/XXXXXXX/XXXXXXXXXXXXXXXXXXXX
# pre-webhook-payload: ""{\"text\":\"{{.JobName}} started\",\"username\":\"DkronBot\"}""
# pre-webhook-headers:
#   - Content-Type:application/json
#
# webhook-endpoint: https://hooks.slack.com/services/XXXXXX/XXXXXXX/XXXXXXXXXXXXXXXXXXXX
# webhook-payload: ""{\"text\":\"{{.JobName}} finished with status {{.Success}}\",\"username\":\"DkronBot\"}""
# webhook-headers:
#   - Content-Type:application/json
#
# mail-host: email-smtp.eu-west-1.amazonaws.com
# mail-port: 25
# mail-username": mailuser
# mail-password": mailpassword
# mail-from": cron@example.com
# mail-subject-prefix: [Dkron]
# cronitor-endpoint: https://cronitor.link/p/XXXXXXXXXXXXXXXXXXXXXXXXXXXX 

• start service sudo systemctl start dkron

2. Install dkron in Sv2

• APT Repository deb [trusted=yes] https://repo.distrib.works/apt/ /
• Install the package sudo apt-get install dkron
• Change the config in /etc/dkron/dkron.yaml

# Dkron example configuration file

# This node is running in server mode
server: false

# Provides the number of expected servers in the datacenter.
# Either this value should not be provided or the value must agree with other servers in the cluster.
# When provided, Dkron waits until the specified number of servers are available and then bootstraps the cluster.
# This allows an initial leader to be elected automatically. This flag requires server mode.
bootstrap-expect: 2

# bind-addr: "{{ GetPrivateIP }}:8946"
# log-level: debug
# tags:
#   dc: east
# encrypt: a-valid-key-generated-with-dkron-keygen
retry-join:
  - 10.15.xx.xx
  - 10.15.xxx.xxx
#
# pre-webhook-endpoint: https://hooks.slack.com/services/XXXXXX/XXXXXXX/XXXXXXXXXXXXXXXXXXXX
# pre-webhook-payload: ""{\"text\":\"{{.JobName}} started\",\"username\":\"DkronBot\"}""
# pre-webhook-headers:
#   - Content-Type:application/json
#
# webhook-endpoint: https://hooks.slack.com/services/XXXXXX/XXXXXXX/XXXXXXXXXXXXXXXXXXXX
# webhook-payload: ""{\"text\":\"{{.JobName}} finished with status {{.Success}}\",\"username\":\"DkronBot\"}""
# webhook-headers:
#   - Content-Type:application/json
#
# mail-host: email-smtp.eu-west-1.amazonaws.com
# mail-port: 25
# mail-username": mailuser
# mail-password": mailpassword
# mail-from": cron@example.com
# mail-subject-prefix: [Dkron]
# cronitor-endpoint: https://cronitor.link/p/XXXXXXXXXXXXXXXXXXXXXXXXXXXX

• start service sudo systemctl start dkron

** Problem **
when i open the dashboard http://127.0.0.1:8080/ui/#/ it shown only one node (master/sever node itself)

here is the log when i check from systemctl status dkron
Sv1

Mar 19 09:46:23 sv1 dkron[347515]: time="2023-03-19T09:46:23+07:00" level=info msg="api: Running HTTP server" address=":8080" node=sv1
Mar 19 09:46:23 sv1 dkron[347515]: time="2023-03-19T09:46:23+07:00" level=info msg="dkron: monitoring leadership" node=sv1
Mar 19 09:46:23 sv1 dkron[347515]: time="2023-03-19T09:46:23+07:00" level=info msg="agent: registering usage stats for cluster ID 'abcdefg
Mar 19 09:46:23 sv1 dkron[347515]: time="2023-03-19T09:46:23+07:00" level=info msg="agent: Listen for events" node=sv1
Mar 19 09:46:23 sv1 dkron[347515]: time="2023-03-19T09:46:23+07:00" level=info msg="agent: Received event" event=member-join node=sv1
Mar 19 09:46:23 sv1 dkron[347515]: time="2023-03-19T09:46:23+07:00" level=info msg="adding server" node=sv1 server=sv1
Mar 19 09:46:24 sv1 dkron[347515]: time="2023-03-19T09:46:24+07:00" level=info msg="agent: Received event" event=member-update node=sv1
Mar 19 09:46:25 sv1 dkron[347515]: time="2023-03-19T09:46:25+07:00" level=info msg="dkron: cluster leadership acquired" node=sv1
Mar 19 09:46:25 sv1 dkron[347515]: time="2023-03-19T09:46:25+07:00" level=info msg="dkron: monitoring leadership" node=sv1
Mar 19 09:46:25 sv1 dkron[347515]: time="2023-03-19T09:46:25+07:00" level=info msg="agent: Starting scheduler" node=sv1\

Sv2

Mar 19 09:46:27 sv2 dkron[7386]: time="2023-03-19T09:46:27+07:00" level=warning msg="plugin configured with a nil SecureConfig" node=sv2
Mar 19 09:46:28 sv2 dkron[7386]: time="2023-03-19T09:46:28+07:00" level=warning msg="plugin configured with a nil SecureConfig" node=sv2
Mar 19 09:46:29 sv2 dkron[7386]: time="2023-03-19T09:46:29+07:00" level=info msg="agent: Dkron agent starting" node=sv2
Mar 19 09:46:29 sv2 dkron[7386]: time="2023-03-19T09:46:29+07:00" level=info msg="agent: Retry join LAN is supported for: aliyun aws azure digitalocean gce k8s linode mdn>
Mar 19 09:46:29 sv2 dkron[7386]: time="2023-03-19T09:46:29+07:00" level=info msg="agent: Joining cluster..." cluster=LAN node=sv2
Mar 19 09:46:39 sv2 dkron[7386]: time="2023-03-19T09:46:39+07:00" level=info msg="agent: Join LAN completed. Synced with 1 initial agents" node=sv2
Mar 19 09:46:39 sv2 dkron[7386]: time="2023-03-19T09:46:39+07:00" level=info msg="agent: Listen for events" node=sv2
Mar 19 09:46:39 sv2 dkron[7386]: time="2023-03-19T09:46:39+07:00" level=info msg="agent: Received event" event=member-join node=sv2
Mar 19 09:46:39 sv2 dkron[7386]: time="2023-03-19T09:46:39+07:00" level=warning msg="non-server in gossip pool" member=sv2 node=sv2
Mar 19 09:46:40 sv2 dkron[7386]: time="2023-03-19T09:46:40+07:00" level=info msg="agent: Received event" event=member-update node=sv2

please help me what is the correct way to create a dkron cluster.
any help is appreciated

[vcastellm]

Be sure that the retry-join ips are correct and you should be good to go. https://dkron.io/docs/usage/clustering