From my local computer, I can ssh into my server without a password by doing:
ssh [email protected]
I then check /var/log/auth.log on the server to see what ssh key was used. I get something like this:
Feb 27 09:11:24 example sshd[1172697]: Accepted publickey for user1 from 146.70.115.169 port 36138 ssh2: RSA SHA256:Gf9ol8izys7sHnypV3jiLD4ftgjlknedb6zVi1EhYeY
Feb 27 09:11:24 example sshd[1172697]: pam_unix(sshd:session): session opened for user1 (uid=1000) by (uid=0)
Then I run the following command on my local computer to find the ssh key file that was used:
find ~/.ssh -iname "*.pub" -print0 | xargs -r0 -I {} bash -c "readlink -f {}; ssh-keygen -l -f {}"
Once I get the file I encode it like so:
base64 -w 0 < ~/.ssh/id_rsa > my_ssh_key
I then save the encoded key as repository variable in bitbucket.
Then I create a script that runs on my bitbucket pipeline to deploy my project:
My bitbucket-pipelines.yml looks something like this
image: php:8.1.13-alpine3.15
pipelines:
branches:
staging:
- step:
name: Deploy to Staging
deployment: staging
caches:
- composer
- npm
script:
- apk update && apk add --no-cache bash
- bash deploy.sh
And the deploy script is like this:
#!/usr/bin/env bash
set -ueo
echo "Build and deploy scripts"
apk update
apk add --no-cache openssh
apk add --update coreutils
echo "Deploy to test server"
mkdir -p ~/.ssh
cat known_hosts >> ~/.ssh/known_hosts
(umask 077 ; echo "${SSH_KEY}" | base64 --decode > ~/.ssh/id_rsa)
cat ~/.ssh/id_rsa
ssh -vvv "${SSH_USER}@${SSH_HOST}" "echo 'Connection successful'"
echo "Ready for testing!"
The problem is my ssh connection on the pipeline is failing for some reason.
The debug output is like so:
OpenSSH_8.8p1, OpenSSL 1.1.1s 1 Nov 2022
debug1: Reading configuration data /root/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/root/.ssh/known_hosts'
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/root/.ssh/known_hosts2'
debug1: Authenticator provider $SSH_SK_PROVIDER did not resolve; disabling
debug2: resolving "example.com" port 22
debug3: resolve_host: lookup example.com:22
debug3: ssh_connect_direct: entering
debug1: Connecting to example.com [192.53.122.20] port 22.
debug3: set_sock_tos: set socket 3 IP_TOS 0x48
debug1: Connection established.
debug1: identity file /opt/atlassian/pipelines/agent/ssh/id_rsa type -1
debug1: identity file /opt/atlassian/pipelines/agent/ssh/id_rsa-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.8
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.9p1 Ubuntu-3ubuntu0.6
debug1: compat_banner: match: OpenSSH_8.9p1 Ubuntu-3ubuntu0.6 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to example.com:22 as 'user1'
debug3: record_hostkey: found key type ECDSA in file /root/.ssh/known_hosts:30
debug3: load_hostkeys_file: loaded 1 keys from example.com
debug1: load_hostkeys: fopen /root/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug3: order_hostkeyalgs: prefer hostkeyalgs: [email protected],ecdsa-sha2-nistp256
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,[email protected],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,ext-info-c
debug2: host key algorithms: [email protected],ecdsa-sha2-nistp256,[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],ssh-ed25519,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected],rsa-sha2-512,rsa-sha2-256
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected],zlib
debug2: compression stoc: none,[email protected],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,[email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,[email protected],diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,[email protected]
debug2: host key algorithms: rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected]
debug2: compression stoc: none,[email protected]
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: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: SSH2_MSG_KEX_ECDH_REPLY received
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:/CCdDqCWoAUEk/MGUCv3mx3nDiHsEDBLjrk8R7nGpE4
debug3: record_hostkey: found key type ECDSA in file /root/.ssh/known_hosts:30
debug3: load_hostkeys_file: loaded 1 keys from example.com
debug1: load_hostkeys: fopen /root/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug1: Host 'example.com' is known and matches the ECDSA host key.
debug1: Found key in /root/.ssh/known_hosts:30
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey out 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 in after 134217728 blocks
debug1: Will attempt key: /opt/atlassian/pipelines/agent/ssh/id_rsa explicit
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,[email protected],ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected]>
debug1: kex_input_ext_info: [email protected] (unrecognised)
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
debug3: start over, passed a different list publickey,password
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: Trying private key: /opt/atlassian/pipelines/agent/ssh/id_rsa
debug3: sign_and_send_pubkey: RSA SHA256:lW4tY23d2DGaxm6ypcBJTjYj6pFI66cAReRBinDDhBo
debug3: sign_and_send_pubkey: signing using rsa-sha2-512 SHA256:lW4tY23d2DGaxm6ypcBJTjYj6pFI66cAReRBinDDhBo
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
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred: ,password
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
debug1: read_passphrase: can't open /dev/tty: No such device or address
debug3: send packet: type 50
debug2: we sent a password packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
Permission denied, please try again.
debug1: read_passphrase: can't open /dev/tty: No such device or address
debug3: send packet: type 50
debug2: we sent a password packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
Permission denied, please try again.
debug1: read_passphrase: can't open /dev/tty: No such device or address
debug3: send packet: type 50
debug2: we sent a password packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
Could somebody please help me figure out the issue?
Thank you
${SSH_USER}?user1