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Safely limiting Ansible playbooks to a single machine?

I'm using Ansible for some simple user management tasks with a small group of computers. Currently, I have my playbooks set to hosts: all and my hosts file is just a single group with all machines listed: ...
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How is Node.js inherently faster when it still relies on Threads internally?

... There are actually a few different things being conflated here. But it starts with the meme that threads are just really hard. So if they're hard, you are more likely, when using threads to 1) break due to bugs and 2) not use them as eff...
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Export specific rows from a PostgreSQL table as INSERT SQL script

....5.3, and my create statement was the same as yours except create view.... All I get in the output is the usual pg_dump comments and SET statements. Not sure where I'm going wrong. – poshest Nov 20 '16 at 15:19 ...
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Catch a thread's exception in the caller thread in Python

I'm very new to Python and multithreaded programming in general. Basically, I have a script that will copy files to another location. I would like this to be placed in another thread so I can output .... to indicate that the script is still running. ...
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SQL to determine minimum sequential days of access?

... @Artem: That was what I initially thought but when I thought about it, if you have an index on (UserId, CreationDate), the records will show up consecutively in the index and it should perform well. – Mehrdad Afshari ...
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Python constructor and default value [duplicate]

...class below, the wordList and adjacencyList variable is shared between all instances of Node. 4 Answers ...
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Accessing elements of Python dictionary by index

... How could one do this dynamically without knowing the depth of the elements? – Ethan Bierlein May 10 '15 at 2:57 3 ...
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Create a pointer to two-dimensional array

...d T[10] are different types. The following alternative doesn't work at all, because the element type of the array, when you view it as a one-dimensional array, is not uint8_t, but uint8_t[20] uint8_t *matrix_ptr = l_matrix; // fail The following is a good alternative uint8_t (*matrix_ptr)[...
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Simplest way to detect a mobile device in PHP

... @kavior.com Yes it can be faked, but we should allow people to fake if they wish... because that would be their intention, why stop people from doing what they specifically want (i.e. load the desktop version for some reason in particular)? – Nick St...
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How to add a progress bar to a shell script?

...} done If you already have a loop which does a lot of work, you can call the following function at the beginning of each iteration to update the spinner: sp="/-\|" sc=0 spin() { printf "\b${sp:sc++:1}" ((sc==${#sp})) && sc=0 } endspin() { printf "\r%s\n" "$@" } until wor...