I am running ansible-playbook inside docker container on kubernetes. It
does copy task and executes a script. Uses private keys. I am invoking it
using a java Process. Looks like the ssh pseudo terminals it might be
opening stay behind once the playbook is finished executing. Any new
playbook invocation adds on to the number of ssh processes. It sort of what
this
<https://groups.google.com/forum/#!msg/ansible-project/IQoTNwDBIiA/qiHUTgg31lkJ>thread
mentions i think, only that I don't see -tt option being appended. I tried
turning pty false(which is needed for sftp anyways i think) in
ansible.cfg as well. Nothing improves. Once ansible-playbook process dies i
will see bunch of defunct [ssh] around.
Here are couple lines from the *"ps" output *
root 1627 1 0 00:00 ? 00:00:00 ssh:
/root/.ansible/cp/c360b1d939 [mux]
root 1629 1 0 00:00 ? 00:00:00 [ssh] <defunct>
root 1630 1 0 00:00 ? 00:00:00 ssh:
/root/.ansible/cp/e8f6c354e2 [mux]
root 1632 1 0 00:00 ? 00:00:00 [ssh] <defunct>
root 1633 1 0 00:00 ? 00:00:00 ssh:
/root/.ansible/cp/edb897f2b6 [mux]
root 1643 1641 0 00:00 ? 00:00:00 ssh -C -o
ControlMaster=auto -o ControlPersist=60s -o StrictHostKeyChecking=no -o
IdentityFile="/opt/ansible/id_rsa" -o KbdInteractiveAuthentication=no -o
PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey
-o PasswordAuthentication=no -o User=<User> -o ConnectTimeout=5 -o
ControlPath=/root/.ansible/cp/b1739bcf8c <machineName> /bin/sh -c
'/usr/bin/python && sleep 0'
root 1645 1644 0 00:00 ? 00:00:00 ssh -C -o
ControlMaster=auto -o ControlPersist=60s -o StrictHostKeyChecking=no -o
IdentityFile="/opt/ansible/id_rsa" -o KbdInteractiveAuthentication=no -o
PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey
-o PasswordAuthentication=no -o User=<User> -o ConnectTimeout=5 -o
ControlPath=/root/.ansible/cp/d54b353787 <machineName> /bin/sh -c
'/usr/bin/python && sleep 0'
*Top output*
1 root 20 0 14.980g 1.487g 15156 S 1.3 0.9 4:17.71 java
9377 root 20 0 38376 3440 1248 R 1.0 0.0 0:00.20 top
449 root 20 0 0 0 0 Z 0.0 0.0 0:00.00 ssh
450 root 20 0 0 0 0 Z 0.0 0.0 0:00.04 ssh
453 root 20 0 0 0 0 Z 0.0 0.0 0:00.00 ssh
454 root 20 0 0 0 0 Z 0.0 0.0 0:00.04 ssh
456 root 20 0 0 0 0 Z 0.0 0.0 0:00.00 ssh
*Code to invoke playbook:*
String[] cmdPurge = { "ansible-playbook",
config.getPurgePlaybookPath(), "-i", config.getInventoryLoc(),
"--extra-vars",
"{\"urls_file\":" + config.getUrlPath() +
",\"type\":\"" + config.getType() + "\",\"purge_file\":\"" +
config.getPurgeFile() + "\"}" ,"--private-key",config.getPrivateKeyFile()};
Process pPurge = Runtime.getRuntime().exec(cmdPurge, null);
BufferedReader in = new BufferedReader(new
InputStreamReader(pPurge.getInputStream()));
while ((line = in.readLine()) != null) {
//process the console output
}
in.close();
int exitcode = pPurge.waitFor();
*Ansible.cfg*
inventory = hosts
remote_user = <User>
host_key_checking = False
timeout = 5
pty=False
pipelining = True
*Base Image:* Ubuntu:Xenial
*Ansible version* : ansible 2.7.2
using JDK8
I faced same issues using Alpine jdk image and then I switched to ubuntu.
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