LEADER 00954nam0-2200325li-450 001 990000172410203316 005 20180312154858.0 035 $a0017241 035 $aUSA010017241 035 $a(ALEPH)000017241USA01 035 $a0017241 100 $a20001109d1970----km-y0itay0103----ba 101 0 $aeng 102 $aGB 200 1 $aSignal processing, modulation and noise$fJ.A. Betts 210 $aLondon$cThe English Universities,1970 610 1 $aelaborazione dei segnali 676 $a621.380 43 700 1$aBetts,$bJ.A.$0754817 801 $aSistema bibliotecario di Ateneo dell' Universitą di Salerno$gRICA 912 $a990000172410203316 951 $a621.380 43 BET$b0003088 959 $aBK 969 $aTEC 979 $c19941109 979 $c20001110$lUSA01$h1712 979 $c20020403$lUSA01$h1625 979 $aPATRY$b90$c20040406$lUSA01$h1612 996 $aSignal processing, modulation and noise$91519046 997 $aUNISA LEADER 04469nam 2200541 450 001 9910808456203321 005 20170918205335.0 010 $a1-78588-258-9 035 $a(CKB)3710000000531733 035 $a(EBL)4191349 035 $a(MiAaPQ)EBC4191349 035 $a(PPN)228012465 035 $a(EXLCZ)993710000000531733 100 $a20160712h20152015 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $2rdacontent 182 $2rdamedia 183 $2rdacarrier 200 10$aPuppet 4 essentials $eacquire the skills to manage your IT infrastructure effectively with Puppet /$fFelix Frank, Martin Alfke 205 $a2nd ed. 210 1$aBirmingham, [England] ;$aMumbai, [India] :$cPackt Publishing,$d2015. 210 4$d©2015 215 $a1 online resource (247 p.) 225 1 $aCommunity experience distilled 300 $aDescription based upon print version of record. 311 $a1-78588-110-8 327 $aCover; Copyright; Credits; About the Authors; About the Reviewer; www.PacktPub.com; Table of Contents; Preface; Chapter 1: Writing Your First Manifests; Getting started; Introducing resources and properties; Interpreting the output of the puppet apply command; Dry-testing your manifest; Adding control structures in manifests; Using variables; Variable types; Controlling the order of evaluation; Declaring dependencies; Error propagation; Avoiding circular dependencies; Implementing resource interaction; Examining the most notable resource types; The user and group types; The exec resource type 327 $aThe cron resource typeThe mount resource type; Summary; Chapter 2: The Master and Its Agents; The Puppet master; Puppet master and Puppet server; Setting up the master machine; Creating the master manifest; Inspecting the configuration settings; Setting up the Puppet agent; The agent's life cycle; Renewing an agent's certificate; Running the agent from cron; Performance considerations; Tuning puppetserver; Using Phusion Passenger with Nginx; Comparing Passenger with puppetserver; Completing the stack with PuppetDB; Troubleshooting SSL issues; Summary 327 $aChapter 3: A Peek under the Hood - Facts, Types, and ProvidersSummarizing systems with Facter; Accessing and using fact values; Extending Facter with custom facts; Simplifying things using external facts; Goals of Facter; Understanding the type system; The resource type's life cycle on the agent side; Substantiating the model with providers; Resource types with generic providers; Summarizing types and providers; Putting it all together; Summary; Chapter 4: Modularizing Manifests with Classes and Defined Types; Introducing classes and defined types; Defining and declaring classes 327 $aCreating and using defined typesUnderstanding and leveraging the differences; Structured design patterns; Writing comprehensive classes; Writing component classes; Using defined types as resource wrappers; Using defined types as resource multiplexers; Using defined types as macros; Exploiting array values using defined types; Using iterator functions; Including classes from defined types; Establishing relationships among containers; Passing events between classes and defined types; Ordering containers; Limitations; The performance implications of container relationships 327 $aMitigating the limitationsThe anchor pattern; The contain function; Making classes more flexible through parameters; The caveats of parameterized classes; Preferring the include keyword; Summary; Chapter 5: Extending Your Puppet Infrastructure with Modules; An overview of Puppet's modules; Parts of a module; Module structure; Documentation in modules; Maintaining environments; Configuring environment locations; Obtaining and installing modules; Modules' best practices; Putting everything in modules; Avoiding generalization; Testing your modules; Safe testing with environments 327 $aBuilding a specific module 410 0$aCommunity experience distilled. 606 $aInformation technology$xManagement 606 $aPuppet (Computer file) 615 0$aInformation technology$xManagement. 615 0$aPuppet (Computer file) 676 $a658.4038 700 $aFrank$b Felix$0396640 702 $aAlfke$b Martin 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910808456203321 996 $aPuppet 4 essentials$94034281 997 $aUNINA