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Run task only if host does not belong to a group
...is a magic variable as documented here: https://docs.ansible.com/ansible/latest/user_guide/playbooks_variables.html#accessing-information-about-other-hosts-with-magic-variables :
group_names is a list (array) of all the groups the current host is in.
...
Several ports (8005, 8080, 8009) required by Tomcat Server at localhost are already in use
...
You've another instance of Tomcat already running. You can confirm this by going to http://localhost:8080 in your webbrowser and check if you get the Tomcat default home page or a Tomcat-specific 404 error page. Both are equally valid evidence that Tomcat runs fine; if it didn't, the...
How to use GROUP_CONCAT in a CONCAT in MySQL
...
Try:
CREATE TABLE test (
ID INTEGER,
NAME VARCHAR (50),
VALUE INTEGER
);
INSERT INTO test VALUES (1, 'A', 4);
INSERT INTO test VALUES (1, 'A', 5);
INSERT INTO test VALUES (1, 'B', 8);
INSERT INTO test VALUES (2, 'C', 9);
SELECT ID, GRO...
How can I perform a `git pull` without re-entering my SSH password?
... ssh-agent on the terminal ) , then simply run it eval $(ssh-agent)
I can confirm that this works, because in my project with lots of submodules and for each submodule being cloned, I had to type in my ssh passphrase. After the above trick, I dont need to do it anymore.
The source of the solution ...
How to check if a value exists in a dictionary (python)
...
i have no python at hand, could you rerun the tests with 'four' instead of 'one' ?
– soulcheck
Nov 21 '11 at 16:55
...
php static function
...is an object of this class. It does not apply to static functions.
class test {
public function sayHi($hi = "Hi") {
$this->hi = $hi;
return $this->hi;
}
}
class test1 {
public static function sayHi($hi) {
$hi = "Hi";
return $hi;
}
}
// Test
$...
Gulp command not found after install
... add is that in my case, once I ran:
npm config set prefix /usr/local
I confirmed the npm root -g was pointing to /usr/local/lib/node_modules/npm, but in order to install gulp in /usr/local/lib/node_modules, I had to use sudo:
sudo npm install gulp -g
...
How to download a branch with git?
...remote branch arcified from origin.
Switched to a new branch 'arcified'
Confirm you are now using the branch you wanted:
$ git branch
* arcified
master
If you want to update the code again later, run git pull:
$ git pull
Already up-to-date.
...
How to implement if-else statement in XSLT?
...g <xsl:choose> tag:
<xsl:choose>
<xsl:when test="$CreatedDate > $IDAppendedDate">
<h2> mooooooooooooo </h2>
</xsl:when>
<xsl:otherwise>
<h2> dooooooooooooo </h2>
</xsl:otherwi...
promise already under evaluation: recursive default argument reference or earlier problems?
...0
}
g <- function(x, T, f. = f) { ## 1. note f.
exp(-f.(x)/T)
}
test<- function(g. = g, T = 1) { ## 2. note g.
g.(1,T)
}
test()
## [1] 8.560335e-37
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