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https://issues.apache.org/jira/browse/CLOUDSTACK-4184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13736863#comment-13736863
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Jayapal Reddy commented on CLOUDSTACK-4184:
-------------------------------------------
Updated the guest vm password get script.
Added changes for retrying password after a random sleep on failure.
Tested by deploy 30 vms parallel, no failure is observed.
For windows guest vm script also same logic can be added.
Patch is posted for review https://reviews.apache.org/r/13496/
> VM password reset works inconsistently
> --------------------------------------
>
> Key: CLOUDSTACK-4184
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-4184
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Virtual Router
> Affects Versions: 4.2.0
> Reporter: Jayapal Reddy
> Assignee: Jayapal Reddy
> Priority: Blocker
> Fix For: 4.2.0
>
> Attachments: cloud-set-guest-password, pass4.pcap, pass.pcap,
> passwords, test.log, test.log
>
>
> 1. When password reset fails for one vm then password reset is not working
> then on.
> 2. In router the password entries are made properly.
> 3. serve password script is giving the password correctly but the vm did not
> recieved it
> Here are the logs:
> === serve_password.sh debug logs
> + PASSWD_FILE=/var/cache/cloud/passwords
> + ip=10.1.1.143
> + logger -t cloud 'serve_password called to service a request for 10.1.1.143.'
> + read input
> + '[' 'GET / HTTP/1.0' == '' ']'
> ++ sed 's/^[ \t]*//'
> ++ cut -d: -f2
> ++ grep DomU_Request:
> ++ echo GET / HTTP/1.0
> + request=
> + '[' '' '!=' '' ']'
> + read input
> + '[' 'User-Agent: Wget/1.11.4 Red Hat modified' == '' ']'
> ++ sed 's/^[ \t]*//'
> ++ cut -d: -f2
> ++ grep DomU_Request:
> ++ echo User-Agent: Wget/1.11.4 Red Hat modified
> + request=
> + '[' '' '!=' '' ']'
> + read input
> + '[' 'Accept: */*' == '' ']'
> ++ sed 's/^[ \t]*//'
> ++ cut -d: -f2
> ++ grep DomU_Request:
> ++ echo Accept: redundant_router/arping_gateways.sh.templ
> redundant_router/backup.sh.templ redundant_router/check_bumpup.sh
> redundant_router/check_heartbeat.sh.templ
> redundant_router/checkrouter.sh.templ redundant_router/conntrackd.conf.templ
> redundant_router/disable_pubip.sh redundant_router/enable_pubip.sh.templ
> redundant_router/fault.sh.templ redundant_router/heartbeat.sh.templ
> redundant_router/keepalived.conf.templ redundant_router/master.sh.templ
> redundant_router/primary-backup.sh.templ redundant_router/services.sh
> + request=
> + '[' '' '!=' '' ']'
> + read input
> + '[' 'Host: 10.1.1.1:8080' == '' ']'
> ++ sed 's/^[ \t]*//'
> ++ cut -d: -f2
> ++ grep DomU_Request:
> ++ echo Host: 10.1.1.1:8080
> + request=
> + '[' '' '!=' '' ']'
> + read input
> + '[' 'Connection: Keep-Alive' == '' ']'
> ++ sed 's/^[ \t]*//'
> ++ cut -d: -f2
> ++ grep DomU_Request:
> ++ echo Connection: Keep-Alive
> + request=
> + '[' '' '!=' '' ']'
> + read input
> + '[' 'DomU_Request: send_my_password' == '' ']'
> ++ sed 's/^[ \t]*//'
> ++ cut -d: -f2
> ++ grep DomU_Request:
> ++ echo DomU_Request: send_my_password
> + request=send_my_password
> + '[' send_my_password '!=' '' ']'
> + break
> + '[' send_my_password == send_my_password ']'
> ++ get_value /var/cache/cloud/passwords 10.1.1.143
> ++ local filename=/var/cache/cloud/passwords
> ++ local keyname=10.1.1.143
> ++ cut -d= -f2
> ++ grep -i 10.1.1.143= /var/cache/cloud/passwords
> + password=bG9wrskhw
> + '[' bG9wrskhw == '' ']'
> + logger -t cloud 'serve_password sent a password to 10.1.1.143.'
> + echo bG9wrskhw
> bG9wrskhw
> + unlock_exit 0 passwdlock 1
> + releaseLockFile passwdlock 1
> + __LOCKDIR=/tmp
> + __LOCKFILE='/tmp/*-29091-passwdlock.lock'
> + __locked=1
> + '[' 1 == 1 ']'
> + rm /tmp/1375947770244011718-29091-passwdlock.lock
> + exit 0
> ^C
> root@r-36-QA:~# ps aux | grep socat
> root 29139 0.0 0.8 4788 1024 pts/0 S 07:42 0:00 socat -lf
> /var/log/cloud.log TCP4-LISTEN:8080,reuseaddr,crnl,bind=10.1.1.1
> SYSTEM:/opt/cloud/bin/serve_password.sh "$SOCAT_PEERADDR"
> root 29141 0.0 0.6 3796 804 pts/0 S+ 07:43 0:00 grep socat
> root@r-36-QA:~#
> ====== Guest vm cloud-set-guest-password script logs
> PASSWORD_SERVER_IP=10.1.1.1
> + '[' -n 10.1.1.1 ']'
> + logger -t cloud 'Found password server IP 10.1.1.1 in
> /var/lib/dhclient/dhclient-eth0.leases'
> + logger -t cloud 'Sending request to password server at 10.1.1.1'
> ++ wget -q -t 3 -T 20 -O - --header 'DomU_Request: send_my_password'
> 10.1.1.1:8080
> + password=
> ++ echo
> ++ tr -d '\r'
> + password=
> + '[' 0 -eq 0 ']'
> + logger -t cloud 'Got response from server at 10.1.1.1'
> + case $password in
> + logger -t cloud 'Password server at 10.1.1.1 did not have any password for
> the VM'
> + continue
> + for DHCP_FILE in '$DHCP_FOLDERS'
> + '[' -f '/var/lib/dhcp3/*' ']'
> + '[' 0 == 0 ']'
> + '[' 0 == 1 ']'
> + logger -t cloud 'Did not need to change password.'
> + exit 0
> [root@v3 init.d]#
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