Deployment Tools • “setuptools” to build packages • “twine” to upload packages to a repository • “pip” to install packages from a repository • “virtualenv” or “pyvenv” (python3 -m venv) to isolate dependencies • “setuptools” to build packages • “twine” to upload packages to a repository • “pip” to install packages from a repository • “virtualenv” or “pyvenv” (python3 -m venv) to isolate dependencies
filenames include platform tags (PEP425) • Python version, Python ABI, platform ABI (OS) • Example: numpy-1.14.0-cp36-cp36m-macosx_10_10_x86_64.whl • Linux presents a very diverse ABI spectrum • Windows and MacOS have way less variation • Thus PEP513 – manylinux1_{x86_64,i686} • Restricted set of kernel / userspace ABIs • Build Python binary packages in old CentOS images ☺ • Mostly works, with some quirks (e.g. stripping for packaging) • Wheel filenames include platform tags (PEP425) • Python version, Python ABI, platform ABI (OS) • Example: numpy-1.14.0-cp36-cp36m-macosx_10_10_x86_64.whl • Linux presents a very diverse ABI spectrum • Windows and MacOS have way less variation • Thus PEP513 – manylinux1_{x86_64,i686} • Restricted set of kernel / userspace ABIs • Build Python binary packages in old CentOS images ☺ • Mostly works, with some quirks (e.g. stripping for packaging)
and Cons ⊕ Dependencies not predetermined (by target OS) ⊕ Multi-platform deployment way easier ⊕ Much simpler release process ⊖ Maintainer is responsible for security ⊖ Possibly more version variation in production ⓘ Security updates might be slower – or faster ⓘ Efficiency often dominates other concerns (esp. with deploying in-house tools) ⊕ Dependencies not predetermined (by target OS) ⊕ Multi-platform deployment way easier ⊕ Much simpler release process ⊖ Maintainer is responsible for security ⊖ Possibly more version variation in production ⓘ Security updates might be slower – or faster ⓘ Efficiency often dominates other concerns (esp. with deploying in-house tools)
doesn‘t build OOTB… • “dh_strip” and “dh_shlibdeps” exclusions • Disable “manylinux1” wheels • Pass the “--no-binary=:all:” option to pip • … or add “no-manylinux1” to your build environment • Increases build times (no wheels, or no extension ones) • Often requires more build dependencies (“*-dev” packages) If stuff doesn‘t build OOTB… • “dh_strip” and “dh_shlibdeps” exclusions • Disable “manylinux1” wheels • Pass the “--no-binary=:all:” option to pip • … or add “no-manylinux1” to your build environment • Increases build times (no wheels, or no extension ones) • Often requires more build dependencies (“*-dev” packages)
create packages • … without the need to memorize too much • Help deliver software with minimal steps or training • Easily build platform-native packages • Do many things with one tool, including: • Creating packages easily (deb, rpm, freebsd, etc) • Tweaking existing packages (removing files, changing metadata/dependencies) • Stripping pre/post/maintainer scripts from packages • Simple way to create packages • … without the need to memorize too much • Help deliver software with minimal steps or training • Easily build platform-native packages • Do many things with one tool, including: • Creating packages easily (deb, rpm, freebsd, etc) • Tweaking existing packages (removing files, changing metadata/dependencies) • Stripping pre/post/maintainer scripts from packages
Debian package • Results conform to Debian policies • Usually more work than omnibus packages • Build main application or library package • Hunt down the dependency tree • If no standard package exists, build it • Iterate (possibly a lot) • OS dictates (some) dependency versions • Results conform to Debian policies • Usually more work than omnibus packages • Build main application or library package • Hunt down the dependency tree • If no standard package exists, build it • Iterate (possibly a lot) • OS dictates (some) dependency versions → →
Page App (SPA) in a browser. • Main goals: • Observability for SPAs / PWAs that run outside of your data center in the browser (and thus outside of classical instrumentation and monitoring) • Early detection of problems of the user application (catch/report browser-side exceptions) • Technical infrastructure to support these goals: • Collection of raw data like metrics, errors / exceptions, and logging events • Transformation of that data into different forms, and persist it to different targets as needed • Correlation of client-side interactions with resulting server-side requests Mission: Monitor a Single Page App (SPA) in a browser. • Main goals: • Observability for SPAs / PWAs that run outside of your data center in the browser (and thus outside of classical instrumentation and monitoring) • Early detection of problems of the user application (catch/report browser-side exceptions) • Technical infrastructure to support these goals: • Collection of raw data like metrics, errors / exceptions, and logging events • Transformation of that data into different forms, and persist it to different targets as needed • Correlation of client-side interactions with resulting server-side requests
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csswizardry
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