I just set up a DC/OS cluster on Azure. I basically just followed the instructions from the Install Guide. So far so good, everything works as expected.
Terraform config used to install DC/OS:
variable "dcos_install_mode" {
description = "specifies which type of command to execute. Options: install or upgrade"
default = "install"
}
data "http" "whatismyip" {
url = "http://whatismyip.akamai.com/"
}
provider "azurerm" {
version = "~> 1.16.0"
}
module "dcos" {
source = "dcos-terraform/dcos/azurerm"
version = "~> 0.1.0"
dcos_instance_os = "coreos_1855.5.0"
cluster_name = "dcos-sandbox"
ssh_public_key_file = "~/.ssh/dcos-sandbox@azure.pub"
admin_ips = ["${data.http.whatismyip.body}/32"]
location = "West Europe"
num_masters = "1"
num_private_agents = "3"
num_public_agents = "0"
masters_vm_size = "Standard_D2s_v3"
private_agents_vm_size = "Standard_B2s"
public_agents_vm_size = "Standard_B2s"
dcos_version = "1.12.0"
# dcos_variant = "ee"
# dcos_license_key_contents = "${file("./license.txt")}"
dcos_variant = "open"
providers = {
azurerm = "azurerm"
}
dcos_install_mode = "${var.dcos_install_mode}"
}
output "masters-ips" {
value = "${module.dcos.masters-ips}"
}
output "cluster-address" {
value = "${module.dcos.masters-loadbalancer}"
}
output "public-agents-loadbalancer" {
value = "${module.dcos.public-agents-loadbalancer}"
}
Now I need to SSH into the master node. According to the docs I should be able to just execute
dcos node ssh --master-proxy --leader
But for some reason the master node does not accept my public key and asks for a password instead.
The debug output for
ssh -A -t -l core <master-ip> -vvv -i ~/.ssh/dcos-sandbox@azure -- ssh -A -t -l core 172.12.0.7 --
is as follows
OpenSSH_7.9p1, OpenSSL 1.1.1b 26 Feb 2019
debug1: Reading configuration data /etc/ssh/ssh_config
debug2: resolve_canonicalize: hostname <master-ip> is address
debug2: ssh_connect_direct
debug1: Connecting to <master-ip> [<master-ip>] port 22.
debug1: Connection established.
debug1: identity file /home/roman/.ssh/dcos-sandbox@azure type 0
debug1: identity file /home/roman/.ssh/dcos-sandbox@azure-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.9
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.6
debug1: match: OpenSSH_7.6 pat OpenSSH_7.0*,OpenSSH_7.1*,OpenSSH_7.2*,OpenSSH_7.3*,OpenSSH_7.4*,OpenSSH_7.5*,OpenSSH_7.6*,OpenSSH_7.7* compat 0x04000002
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to <master-ip>:22 as 'core'
debug3: hostkeys_foreach: reading file "/home/roman/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/roman/.ssh/known_hosts:55
debug3: load_hostkeys: loaded 1 keys from <master-ip>
debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib@openssh.com,zlib
debug2: compression stoc: none,zlib@openssh.com,zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib@openssh.com
debug2: compression stoc: none,zlib@openssh.com
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:XyFTmZCV1ZW9ddDK7QP/Q0Bdix5KFgxUwQYcZOmmk6A
debug3: hostkeys_foreach: reading file "/home/roman/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/roman/.ssh/known_hosts:55
debug3: load_hostkeys: loaded 1 keys from <master-ip>
debug1: Host '<master-ip>' is known and matches the ECDSA host key.
debug1: Found key in /home/roman/.ssh/known_hosts:55
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug1: Will attempt key: /home/roman/.ssh/dcos-sandbox@azure RSA SHA256:rup1zxdhaB5+ADImcbpI9wzEfli8Jr/8tXgQ18XubBo explicit agent
debug2: pubkey_prepare: done
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug3: start over, passed a different list publickey,password,keyboard-interactive
debug3: preferred publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering public key: /home/roman/.ssh/dcos-sandbox@azure RSA SHA256:rup1zxdhaB5+ADImcbpI9wzEfli8Jr/8tXgQ18XubBo explicit agent
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug2: we did not send a packet, disable method
debug3: authmethod_lookup keyboard-interactive
debug3: remaining preferred: password
debug3: authmethod_is_enabled keyboard-interactive
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug3: send packet: type 50
debug2: we sent a keyboard-interactive packet, wait for reply
debug3: receive packet: type 60
debug2: input_userauth_info_req
debug2: input_userauth_info_req: num_prompts 1
Apparently my SSH client is offering the SSH key which I used when I installed DC/OS using terraform.
Any ideas what I'm doing wrong?
