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How to get the IP address of the docker host from inside a docker container

...r, that's what bridge IP can give you (of course in the stndard "home" installation). Why anybody would need "real" host IP if it can be even outside of docker bridge and can be unaccessible? This is the solution for all people who just installed docker and want to play with it in a short time. ...
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How do I get the localhost name in PowerShell?

... Don't forget that all your old console utilities work just fine in PowerShell: PS> hostname KEITH1 share | improve this answer ...
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Java Equivalent of C# async/await?

I am a normal C# developer but occasionally I develop application in Java. I'm wondering if there is any Java equivalent of C# async/await? In simple words what is the java equivalent of: ...
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Swift - Convert to absolute value

...alue.magnitude) // prints: 5 #2. Get absolute value of an Int from abs(_:) method Swift has a global numeric function called abs(_:) method. abs(_:) has the following declaration: func abs<T>(_ x: T) -> T where T : Comparable, T : SignedNumeric Returns the absolute value of the g...
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How do I sort a vector of pairs based on the second element of the pair?

...response to your edits to your question, here's some thoughts ... if you really wanna be creative and be able to reuse this concept a lot, just make a template: template <class T1, class T2, class Pred = std::less<T2> > struct sort_pair_second { bool operator()(const std::pair<T1...
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Why does viewWillAppear not get called when an app comes back from the background?

... In other words, if someone looks at another application or takes a phone call, then switches back to your app which was earlier on backgrounded, your UIViewController which was already visible when you left your app 'doesn't care' so to speak -- as far as it is concerned, it's never disappeared and...
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Ruby: How to turn a hash into HTTP parameters?

...uery # => "a=a&b[c]=c&b[d]" The gem is 'addressable' gem install addressable share | improve this answer | follow | ...
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Merge a Branch into Trunk

... Really? Without risking remerging the same changesets? Can you provide a link to corroborating evidence of this please. – Neutrino Apr 3 '12 at 16:56 ...
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Read only the first line of a file?

...od (Python 2 docs, Python 3 docs): with open('myfile.txt') as f: first_line = f.readline() Some notes: As noted in the docs, unless it is the only line in the file, the string returned from f.readline() will contain a trailing newline. You may wish to use f.readline().strip() instead to rem...
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Multiple DB Contexts in the Same DB and Application in EF 6 and Code First Migrations

...lied to the target database. Applying explicit migrations: [201402032113124_InitialDatabaseCreation]. Applying explicit migration: 201402032113124_InitialDatabaseCreation. Running Seed method. PM> Update-Database -ConfigurationTypeName WebApplication3.Migrations.AnotherDbContext.Configuration Sp...