Ansible stop playbook if task fails. If last retry fails, I want to fail my play. Jun 14, 2018 · This worked for me: $ cd /root/. register: motd_contents. For example: tasks: - name: Run the command if "foo" is defined. name. Ansible offers a task debugger so you can fix errors during execution instead of editing your playbook and running it again to see if your change worked. In most cases, you can use the short module name fail even without specifying the collections keyword . Nov 19, 2021 · In addition, I would like to add the option exit from ansible-playbook run if not successful. pub. Imagine that failed all hosts in a play wouldn't terminate the whole playbook. With this option, Ansible stops on each task and asks if it should execute that task. The Task keyword any_errors_fatal: yes will do what you want, and you should be using is failed versus just the . From the outside world (Linux shell), you could use CTRL-C while the playbook is running on your terminal. With this option, Ansible stops on each task, and asks if it should execute that task. Note that this affects all hosts. I want to ignore all other plays if some condition is not met. From the documents the 'shell' task work exactly the same as running the command through the shell on the remote machine, why does it fail? It can execute other commands, but it fails to execute the commands I send to kill the process. And in case where a host is not reachable it will not be able to. rc will contain the exit code, so if that is not 0 the command failed. In addition to those Jinja2 tests, Ansible supplies a few more and users can easily create their own. This debugger enables you to debug as task. $ ssh-keygen -t rsa. - hosts: server_group1. builtin. rc == 1" here rc is the return code of the command . reset_connection (added in Ansible 2. now use fail module to stop the play if the task fails. Apr 29, 2019 · Therefore I wish to handle certain return codes within the playbook. Playbook Debugger. Within each play, Ansible applies the same task directives to all hosts. 0_71 register: p when: p. May 23, 2024 · This module is part of ansible-core and included in all Ansible installations. The ignore_errors directive only works when the task is able to run and returns a value of ‘failed’. Sep 24, 2020 · I've just run into the same issue and I figured out another hacky way. - name: Test play. That way: All your tasks will be attempted, regardless of failure; The playbook as a whole fails if any of your tasks fails, so you will see success or failure in the report at Sep 12, 2023 · I am going against the grain here… I would avoid ignore_errors: true and only use that as a last resort…. You can then, for example, check or set the value of variables, update module arguments, and re-run the task with the new variables and Jun 25, 2015 · Gathering facts is equivalent to running the setup module. To specify a password for sudo, run ansible-playbook with --ask-become-pass ( -K for short). Mar 29, 2021 · Consider executing an ansible task that checks the return value of a process with three possibilities: Not started Success Failure ansible should pass the task on 'success' obviously. Is it possible to force the commands in Jul 6, 2019 · 1. Asked 3 years, 10 months ago. /vars/passwords. With this approach you selectively execute tasks when needed and also continue from point where it failed, after fixes. The playbook is ok, you can verify it by running it later. For example, in the playbook below the command will succeed, notify the handler, and end the play. For example, if you have a task called “configure ssh”, the playbook run will stop and ask: Perform task: configure ssh (y/n/c): Answer “y” to execute the task Nov 3, 2021 · Ansible plays and tasks are executed in the order they are defined in a playbook, and by default, if a task fails, the other tasks will not be executed in that order. You can use ignore_errors to continue on in spite of the failure: - name: Do not count this as a failure ansible. The captured return result of the failed task that triggered the rescue. command: /bin/systemctl stop "{{ item }}" with_items: Working with command line tools. For example, if you have a task called “configure ssh”, the playbook run will stop and ask. You can check or set the value of variables, update module arguments, and re-run the task May 27, 2022 · Generally playbooks will stop executing any more steps on a host that has a task fail. ignore_errors: True prevents the play to fail instantly if one of the first steps fail. # my-playbook. until. sh actually does exit with a non-zero exit code if it can't do what it is supposed to do, usually by putting set -e at Dec 15, 2015 · 9. isdir is defined and p. I have a playbook with say 4 plays. vars_files: - ". tasks: - name: Stop services. The command would be OS specific. Jun 21, 2021 · 6. Ansible service module doesn't check service's existence. They are useful when you are creating or editing a playbook or role and you want to know what it will do. If I had a playbook running on 10 hosts, and it failed on 1 host on task three out of ten, the 7 subsequent tasks would not run for that host. The above example checks if the OS family is RedHat before installing httpd. When you run a playbook, Ansible returns information about connections, the name lines of all your plays and tasks, whether each task has succeeded or failed on each May 23, 2024 · Tests can also be used in list processing filters, like map() and select() to choose items in the list. Sep 20, 2019 · Why it fails while the user that runs the command is true and when I run the same command on the remote machine, it works. --start-at-task will start execution from given task but it wouldn't restart the execution with all facts set by previous tasks. conf' exist and registers the output. Apr 21, 2022 · It was possible to end the whole playbook by meta *end_play* in Ansible 2. yml --step. -w, --wait : Wait for all killed processes to die. If the file is not created before the retries the task would be marked as failed. To do so, write a task that looks like this: - name: this will not be counted as a failure command: /bin/false ignore_errors: yes. . Search AskUbuntu or Unix. First setup a sub-tasks. Handling Failures using Ignore_errors Directive. - hosts: localhost. Apr 28, 2020 · Ansible version : 2. g. 1. Viewed 24k times. To execute a playbook interactively, use --step: ansible-playbook playbook. vars. . Ansible does not provide any errors or logs that would explain this, even with -vvvv option. Ask Question. Jun 25, 2021 · One tactic you could use is to ignore the errors, but store the failure condition in a variable, and assert the state of that variable as the last task in the playbook. My thought was run two tasks, the first task Ansible logs on to the WLC & runs show time & if May 23, 2024 · In this example playbook, the Apache server is restarted by the handler after all tasks are completed in the play. Unmaintained Ansible versions can contain unfixed security vulnerabilities (CVE). stop a stopped server, you can indicate "ignore_errors: yes", to tell Ansible it's OK to fail the task and continue, e. Ansible also provides a couple of variables for tasks in the rescue portion of a block: ansible_failed_task. (Note that certain errors could still prevent the handler from running, such as a host becoming unreachable. The ignore_errors directive only works when the task can run and returns a value of ‘failed’. These keywords are not strategies. : name: This task could fail, but it doesn't matter, contiue with next task shell: "stop_server. hosts: localhost. shell: echo "I've got '{{ foo }}' and am not afraid to use it!" when: foo is defined. isdir But what must I do to ensure that the following tasks runs only if this dir does not exist? Apr 23, 2024 · You could define the vlans in your host_vars for each switch, and then have the playbook only configure the vlans defined per switch. You will also want to ensure that /opt/stopper. You can check or set the value of variables, update module arguments, and re-run the task Dec 4, 2019 · 2. When running the playbook, which runs top to bottom, hosts with failed tasks are taken out of the rotation for the entire playbook. hosts: all. Let me know if it works for you . Ansible runs the loop and: You have achieved what you wanted. post_tasks: -Cleanup / uninstall packages. This approach is similar to exception handling in many programming languages. Conditional expression, determines if an iteration of a task is run or not. --start-at-task is what you're looking for. ssh) as: $ sudo nano authorized_keys. Using ignore_errors directive. Ansible v2 will have proper code blocks so you can use a single when: for multiple tasks. You can use ignore_errors to continue on in spite of the failure. Here's a practical example: - name: Check required variables are set ansible. For example, in the play below the host test_99 is unreachable - hosts: test_11,test_12,test_99 gather_facts: false tasks: - ping: - debug: var: inventory_hostname As expected, the debug task omit the unreachable host Nov 6, 2023 · A basic when statement uses a simple condition that is checked before a task is executed: - name: Ensure the package httpd is installed. With Ansible, you can execute tasks and playbooks on multiple different systems with a single command. This keyword implies a ‘ retries loop’ that will go on until the condition supplied here is met or we hit the retries limit. yml - hosts: myservers tasks: - name: Check ALL hosts are reacheable before doing the release fail: msg: > [REQUIRED] ALL hosts to be reachable, so flagging {{ inventory_hostname }} as failed, because host {{ item }} has no facts Nov 13, 2017 · 7. rc output, because a task can fail for a whole bunch of reasons. You can run a task on a single host with run_once. rescue: - name: do somthing when the task above fails. So for below example - If I cannot find any new file in Play1 then I don't want to execute P Aug 24, 2020 · Q: "Run a handler play then exit the play if rc == 0". A good way to achieve prompt for each task without modifying the playbook itself is to use the --step option of ansible-playbook command. Any reporting tool looking for failures (e. shell> cat pb. command: /bin/false ignore_errors: yes. The only thing you can improve is getting rid of the warning by fixing the conditional: tasks: - shell: echo {{ item }} register: result. Dec 27, 2013 · Some of tasks I wrote start and never end. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible. I have the task set to retry x amount of times. 3) interrupts a persistent connection (i. Using Variables. roles: - role: ansible-role-1. when: cmdb_status != "to-be-staged" Status ¶ This module is guaranteed to have no backward incompatible interface changes going forward. yml file present in fresco_module\tasks folder. yml". To represent the variations among those different systems, you can create variables with standard YAML syntax, including lists and dictionaries. Not very nice, but I still prefer this way then the "include_task" solution (and in my case I already had the command statement). In an Ansible playbook I want to run tasks if a directory does not exists. The task is May 23, 2024 · Handling errors with blocks. pre_tasks: -Configuration / package installation. While this causes Ansible to stop dispatching new tasks and exit, in many cases, module tasks that were already dispatched to remote hosts will run to completion. e. 4, testing for the presence of a file did not work correctly if the remote user did not have read access to that file. Apr 30, 2021 · Generally playbooks will stop executing any more steps on a host that has a task fail. However, the task will only time out if it exceeds the time limit set with May 23, 2024 · The ability to use search_regex with a port connection was added in Ansible 1. register: foo. 3 and then fail. ssh. 1) clears the failed state (if any) from hosts specified in the play’s list of hosts. Aug 9, 2018 · IMHO there isn't simpler way to ensure that service is stopped. Use loop_control loop_var and create unique variable, e. command: "service -e | grep {{ target_service }} && service {{ target_service Feb 24, 2024 · Our Ansible task waits for the file to be created until it eventually times out. Documentation: May 20, 2016 · Couple this with a check for a file, using the stat module, and this should work easily enough for you. Apr 4, 2019 · var: failed_roles. end_play (added in Ansible 2. Rescue blocks specify tasks to run when an earlier task in a block fails. Finally i would want to delete the lock file But assume all hosts fail during deployment, the Jun 19, 2020 · Tasks to be done:- Write a task in main. Here That command my fail when db is not up. Note: Run project install to install ansible. It's not documented, but simply add a task like this: - name: Gathering facts. Aug 11, 2016 · In your first task, you have register the output to ec2. You have options here to select (N)o/(y)es/(c)ontinue. rescue: - debug: msg: Command failed. This is the latest (stable) Ansible community documentation. The goal of each task is to execute a module, with very specific arguments. Jan 29, 2021 · Ansible: move on to the next task if the task is completed on one host 0 Ansible 2. A quick example or a one run playbook might look something like this: - name: check for foo. we have playbooks which takes hours to complete the setup & if run fails in between then we have to fix & restart the whole play from first task. - name: fail if already run on host. In check mode, Ansible runs without making any changes on remote systems. Checking if there are any ansible_facts for each required hosts feels more explicit to me. yml Dec 18, 2018 · By default, if Ansible fails the playbook will end on that task, for the respective host it was running on. all_errors_fatal to force the entire playbook to stop when a task fails. Grouping tasks under the block directive. Note: If the variable item_my_role is used in the included role, the task set_fact in the rescue section, if used, will add a wrong item to the dictionary failed_roles. Besides that, you can also change the values of variables on-the-fly, and continue the execution. If a task fails on a host, Ansible takes that host out of the rotation for the rest of the playbook. ssh/ or /root/. - name: Check for java exists in /opt stat: path=/opt/jdk1. Apr 12, 2024 · With this option, Ansible stops on each task and asks if it should execute that task. 4. The status of each task. You can control how Ansible responds to task errors using blocks with rescue and always sections. Mar 20, 2019 · In the task level, if it's likely to be failure, e. setup: In combination with gather_facts: no on playbook level the facts will only be fetched when above task is executed. - name: Fail if "bar" is undefined. To run a follow-up task on these hosts, query the registered variable for is skipped (not for “undefined” or “default”). Using ansible-playbook 2. command: /bin/false ignore_errors: true. Jul 24, 2017 · You try to run Ansible while automatic updates are running in background (which is what happens right after setting up a new machine). Using the task debugger for troubleshooting from the command line. Mar 17, 2021 · You register the variables a and b to contain the output of the commands. Depending on how many switches and vlans you have, that might be tedius, but at least then you would know the switches would get the vlans you want them to have. 7. May 13, 2024 · Roles must be included in the playbook as follows: - name: Playbook. If you want a block of tasks to execute, you can use tags and --with-tags: . Jun 27, 2019 · Put into the block the tasks that may have the issues and end the play in the rescue section if any of the tasks fails. From within the playbook, you could use: assert or fail to fail a task on a specific condition. 1. Also if you need more than 3 Apr 30, 2021 · # Example playbook using fail and when together-fail: msg: The system may not be provisioned according to the CMDB status. copy the entire key and paste in file (of master node located at path: /. $ cat id_rsa. when. - role: ansible-role-2. May 22, 2018 · Or very nice and short as Patrick suggested, but without custom fail message: tasks: - wait_for: host: ams-server-101 port: 443 timeout: 1 register: https_port_check failed_when: not https_port_check. Nov 17, 2023 · Ansible's ignore errors feature is a simple yet effective tool in the arsenal of any developer. The task that returned ‘failed’ and triggered the rescue. The play recap that summarizes results of all tasks in the playbook per host. Stop it with CTRL-c, then execute the playbook with -K and the appropriate password. Oct 6, 2021 · Q: "How Ansible considers failed hosts in a run again?" A: Use ignore_unreachable (New in version 2. 2) causes the play to end without failing the host(s). Instead of using the ansible git module run it by the command module and you can solve the retrying in the command. It does not make Ansible ignore undefined variable errors, connection failures, execution issues (for example, missing packages), or syntax errors. You can use ignore_errors to continue despite of the failure. register: ec2 fail: when: "ec2. May 23, 2024 · Ansible always registers something in a registered variable for every host, even on hosts where a task fails or Ansible skips a task because a condition is not met. conf. Mar 11, 2023 · By default, Ansible stops executing a play as soon as a task fails. Apr 26, 2021 · By default Ansible stops executing tasks on a host when a task fails on that host. I could add ignore_errors: yes but that way play will pass even if all Apr 26, 2021 · Debugging tasks. Ansible offers the loop, with_<lookup>, and until keywords to execute a task multiple times. with_sequence: start=4 end=16. Consider the following Apr 10, 2018 · Until that feature comes around you can accomplish the same thing with include_tasks and with_items. sh" ignore_errors: yes. Oct 7, 2019 · I have multiple plays in below playbook. You can handle task-level failure using any of the below approaches. - name: Do not count this as a failure ansible. May 23, 2024 · Step mode. assert: that: - my_var is defined - my_var > 5 fail_msg: "Ensure 'my_var' is defined and greater than 5" May 23, 2024 · Ansible provides two modes of execution that validate tasks: check mode and diff mode. When handlers are forced, Ansible will run all notified handlers on all hosts, even hosts with failed tasks. Like all templating, tests always execute on the Ansible control node, not on the target of a task, as they test local data. ssh + control persist) Apr 30, 2021 · It is the purpose of a play to map a selection of hosts to tasks. When you run a playbook, Ansible returns information about connections, the name lines of all your plays and tasks, whether each task has succeeded or failed on each May 23, 2024 · Time limit for the task to execute in, if exceeded Ansible will interrupt and fail the task. yum: name: httpd. To proceed to the next play clear errors with - meta: clear_host_errors. tasks: - block: - command: /bin/false. Playbook just hangs and passing hours doesn't change anything. Apr 27, 2019 · 1. Ex. However, you can use failed_when and set it to false to treat specific errors as non-fatal, allowing the play to continue execution and use the registered variable. yml file is provided to ansible-playbook. ignore_errors: true # In case there is no process. Sep 24, 2020 · The following Ansible playbook verifies that a user can access GitHub: - name: Generate SSH keypair become: true user: When this tasks fails, I would like to May 18, 2020 · I have an ansible task that is running the "shell" module. It seems the way to go as it allows to set which RCs to handle. I am very new to Ansible and having an issue. failed For such an important check it might appropriate to blame the user with a vicious fail message. item_my_role, avoiding potential conflict inside the included roles. yml. I tried to do it using post_tasks and I was looking for a collection for it (something like ansible. Then, a user might want to terminate the playbook on her own. When you run a playbook, Ansible returns information about connections, the name lines of all your plays and tasks, whether each task has succeeded or failed on each You can control how Ansible selects the next host in a group to execute against with order. Nov 15, 2023 · Using Assertions In Playbooks. As APT uses semaphore, Ansible gets kicked out. retries: 3 delay: 5 Then retries are not executed at all, because first command execution fails whole play. Dictionary/map of variables. conf' register: files_stat. we can also define the number of retries and interval between each check. posix to print at the end of task execution time) but i haven't find a tasks: - apt: pkg=psmisc state=present. mainplaybook. For example, to get the name use ansible_failed_task. These two actions must be split. when: ansible_os_family == "RedHat". They are directives or options applied to a play, block, or task. If one of those commands failed, you execute task no. when: "failfast_flag and <the actual check>". stat. yml to contain your install tasks: Sub-Tasks. we are assuming 1 for fail and 0 for success. Each task has a status of ok which means it ran successfully. I tried the failed_when Statement for this Task. After this task runs, files_stat. --start-at-task <START_AT_TASK>¶ start the playbook at the task matching this name--step¶ one-step-at-a-time: confirm each task before running--syntax-check¶ perform a syntax check on the playbook, but do not execute it--vault-id¶ the vault identity to use--vault-password-file¶ vault password file--version¶ When issuing a cancel request on a currently running Tower job, Tower issues a SIGINT to the ansible-playbook process. If you run a playbook utilizing become and the playbook seems to hang, most likely it is stuck at the privilege escalation prompt. Mar 22, 2023 · When a particular task is failed in a host then ansible will mark the host and stop further tasks from running in the host. Ansible uses variables to manage differences between systems. Or, from another terminal, you could get the PID of the ansible Within each play, Ansible applies the same task directives to all hosts. You can manually gather facts by running it. fail the t May 27, 2022 · New in version 2. For Red Hat Ansible Automation Platform subscriptions, see Life Cycle for version details. Either (1) more then one task, or (2) command that check service's existence is needed. fail for easy linking to the module documentation and to avoid conflicting Debugging tasks. The other hosts would remain unaffected. Answer “y” to execute the task, answer “n” to skip the task, and answer “c” to exit step Not sure i fully understood your question, but you could use a - block and rescue structure in order to treat the failures and continue the playbook in failure scenarios: example: - block: - name: Check fail. stat: path: "/etc/{{ item }}" loop: - 'hosts' - 'resolv. While in host level, you already have the Jul 15, 2022 · The ignore_errors directive only works when the task is able to run and returns a value of ‘failed’. Notifying handlers Tasks can instruct one or more handlers to execute using the notify keyword. I want to retry my second command a few times. 0. fail: msg="This host has already had this playbook run against it". Apr 27, 2015 · You can achieve similar effect by just using the --step flag e. results will contain an array of results for each item in the loop May 23, 2024 · clear_host_errors (added in Ansible 2. - name: Retry until a file is available. state: present. When I do retries as follows. To execute a playbook interactively, use --step. Jun 5, 2015 · Or just a straight - fail: if you will certainly not want to continue. 4, testing for the absence of a directory or UNIX socket did not work correctly. The problem with the above is that sometimes a command in the tasks section fails, and when it does the post_tasks section doesn't run, leaving the system in a messy state. remote_user: ansible. You have access to all of the features of the debugger in the context of the task. tasks: - name: Register a variable. It allows tasks within an Ansible playbook to fail without stopping the entire playbook execution. The “Gathering Facts” task runs implicitly. 2. May 27, 2022 · For community users, you are reading an unmaintained version of the Ansible documentation. In this example, there are three tasks Within each play, Ansible applies the same task directives to all hosts. I write a simple play at the very beginning of my playbook which will use a fact. fail: msg: "Test failed". Both in an example playbook: By default Ansible stops executing tasks on a host when a task fails on that host. In practice, the assert module is embedded within tasks in your playbook. Use the localhost for the inventory for ansible-playbook. ) Defining failure Ansible lets you define what “failure” means in each task using the failed_when conditional. shell: cat /etc/motd. ). use fail module after every task. Note that the above system only governs the return value of failure of the Since the first step as part of running the playbooks, ansible gathers facts for all the hosts. Examples of commonly-used loops include changing ownership on several files and/or directories with the file module, creating multiple users with the user module, and repeating a polling step until a certain result is reached. First play does locking (Creates one lock file) Second play is for deployment logic Third runs a test suite and waits for the result Fourth does the rollback based on test results. Modified 3 years, 10 months ago. However, this behavior can be changed with the use of a keyword called “ ignore_errors: true “. A: This is not possible to accomplish in one task because a task can't be both changed and failed at the same time. 4. Edit on GitHub. SE for suggestions. Doing this should allow a block to handle failed packages, or you could even include some checks and package installs in the sub-tasks if you wanted. Create simple roles for testing. May 23, 2024 · By default, Ansible stops executing tasks on a host when a task fails on that host. For example, - hosts: host01,host02. If things fail, simply correct the playbook file and rerun. The step asks you on before executing each task and you could choose (N)o/(y)es/(c)ontinue. tasks: -Work with installed packages. ansible. killall checks once per second if any of the killed processes still exist and only returns if none are left. The notify keyword can be applied to a task and accepts a list of handler names that are notified on a task change. Complete newbie to Ansible but I've been asked to automate updating the password on our Guest WLAN with Ansible, we have 5 WLC where we need to log in to each of them & run a one line command to change it. Alternatively, a Jun 26, 2023 · --start-at-task <START_AT_TASK> start the playbook at the task matching this name--step one-step-at-a-time: confirm each task before running--syntax-check perform a syntax check on the playbook, but do not execute it--vault-id the vault identity to use--vault-password-file,--vault-pass-file vault password file--version Nov 21, 2022 · From the ansible documentation: If a required variable has not been set, you can skip or fail using Jinja2’s defined test. These modes can be used separately or together. ansible_failed_result. By default, Ansible gathers information about your inventory that it can use in the playbook. – techraf. Prior to Ansible 2. If the shell command still does not complete successfuly after x amount of retries, how would I make ansible shut down the host? Here's an example of my shell command with retries: Jul 4, 2015 · Inspired from other answers. Ansible includes a debugger as part of the strategy plugins. Sometimes, though, you want to continue on. I need to create one single play in a playbook where the playbook is failed when a condition is met. # This code checks if '/etc/hosts' and '/etc/resolv. Automation controller, AWX, ARA, etc), or even just your Ansible terminal output and the color schema (you will see failed, and the color red go by) and finally even your Play Recap will show failures. when: "item|int < 7". stat: path=/etc/foo. g: ansible-playbook playbook. This behavior is similar to pressing Ctrl-C during a command Feb 28, 2023 · Ansible will block the next task in your playbook, waiting until the async task is either complete, fails, or timeout. This will allow you to confirm each step before it is run. 📌. save key under the name of id_rsa. Other keywords that affect play execution include ignore_errors, ignore_unreachable, and any_errors_fatal. ansible-playbook. Then use killall like this: tasks: - shell: "killall screen --wait". 9: how to CONTINUE with the rest of the tasks if a condition is not satisfied Nov 3, 2023 · Ansible allows you to capture the output using the register directive. Then run this to check: $ ansible all -m ping -u root. The task is to stop and start the service named ssh using the service module in Ansible. See Registering variables for more information. This feature is particularly useful in scenarios where certain tasks are not critical and their failure should not halt the automation process. 12. And in case a host is unreachable that task will fail with "Undefined variable error". You can also use the Ansible debugger to execute playbooks in a step-by-step mode and to examine the content of variables and arguments interactively. Force Playbook to stop after a failed task. In other words, imagine it's not implemented that way. 8. Ansible only runs rescue blocks after a task returns a ‘failed May 24, 2021 · An alternate approach would be to generate a variable on failure from the bash command, register it to Ansible and then use it in when, like in the example below. Loops. For example for FreeBSD. ---. Jul 29, 2020 · Run Ansible task conditionally and fail if condition is not met - Server Fault. To be more specific, if the user attempts to reinstall a version of openjdk which is already installed on the target server, the play will make this check and fail, the rest of the plays in the task list being cancelled onwards. Note. ch ac fm ta vr xe px kn rv jg