Proxmox VE Documentation ======================== We try to generate high quality documentation for {website}[{pve}], and choose to use http://www.methods.co.nz/asciidoc/[AsciiDoc] as base format. The basic idea is to generate high quality manual pages, and assemble them into a complete book, called link:pve-admin-guide.adoc[Proxmox VE Administration Guide]. So we have one source, and generate several documents from that. It is also possible to generate printable PDF files, or ebook formats ('.epub'). When possible, we provide scripts to extract API definitions, configuration or command line options from the source code. To simplify the documentation task, we keep all Documentation within this repository. It is possible to generate the docs without installing any additional Proxmox packages with: make pve-doc-generator.mk make index To update the auto-generate API definitions use: make update NOTE: you need a fully installed development environment for that. Debian Packages --------------- We generate a development package called 'pve-doc-generator', which is used by other Proxmox VE package to generate manual pages at package build time. Another package called 'pve-docs' is used to publish generated '.html' and '.pdf' files on our web servers. You can generate those Debian packages using: make deb Common Macro definition in link:asciidoc/asciidoc-pve.conf[] ------------------------------------------------------------ 'asciidoc' allows us to define common macros, which can then be referred to using `{macro}`. We try to use this mechanism to improve consistency. For example, we defined a macro called `pve`, which expands to "Proxmox VE". For URLs which are used more than once, two macros should be defined: * `{name-url}`, which just contains the http(s) URL * `{name}`, which contains the complete link including the canonical description For example, the macro `{forum-url}` expands to {forum-url}, and the macro `{forum}` expands to {forum}. The plan is to add more such definitions for terms which are used more than once. WARNING: When asciidoc encounters a misspelled macro name, it will silently drop the containing line! Autogenerated CLI Command Synopsis ---------------------------------- We generate the command line synopsis for all manual pages automatically. We can do that, because we have a full declarative definition of the {pve} API. I added those generated files ('*-synopsis.adoc') to the git repository, so that it is possible to build the documentation without having a fully installed {pve} development environment. Style Guide ----------- 'asciidoc' uses a fairly simple markup syntax for formatting content. The following basic principles should be followed throughout our documentation. Sections ~~~~~~~~ Sections are formatted using `two-line titles', by adding a line of the appropriate characters and of the same length as the section title below the title text: Level 0 (top level): ====================== Level 1: ---------------------- Level 2: ~~~~~~~~~~~~~~~~~~~~~~ Level 3: ^^^^^^^^^^^^^^^^^^^^^^ Level 4 (bottom level): ++++++++++++++++++++++ NOTE: Level 4 headings are currently not working for `manpage` outputs, you may want to use `.SECTION' instead, which results in the same rendering, and this level of Heading isn't displayed in any Index/TOC anyway. Section titles should always be preceded by two empty lines. Each word in a title should be capitalized except for ``articles, coordinating conjunctions, prepositions, and the word to in infinitives unless they appear as the first or last word of a title'' (see http://web.mit.edu/course/21/21.guide/capitals.htm[Mayfield Electronic Handbook of Technical & Scientific Writing]). Lists ~~~~~ Numbered Lists ^^^^^^^^^^^^^^ Numbered lists should be created using the implicit numbering format: ----- . First level .. Second level . First level again ----- . First level .. Second level . First level again Bulleted Lists ^^^^^^^^^^^^^^ Bulleted lists should be created using the '*' symbol: ----- * First level ** Second level * First level again ----- * First level ** Second level * First level again If you need to have other elements on the same level than a list element you can do this with the '+' symbol: ---- . First level .. Second level + Anothe Sentence (or Block) on the continued second level. . First level again ---- . First level .. Second level + Anothe Sentence (or Block) on the continued second level. . First level again Labeled Lists ^^^^^^^^^^^^^ Labeled lists should be used to make lists of key-value style text more readable, such as command line parameters or configuration options: .Regular labeled lists ----- First Label Text:: Element text paragraph Second Label Text:: Another element text paragraph. ----- First Label Text:: Element text paragraph Second Label Text:: Another element text paragraph. .Horizontal labeled lists ----- [horizontal] First Label Text:: Element text paragraph Second Label Text:: Another element text paragraph. ----- creates [horizontal] First Label Text:: Element text paragraph Second Label Text:: Another element text paragraph. The FAQ section uses a special questions and answers style for labeled lists. Text and Block Styles ~~~~~~~~~~~~~~~~~~~~~ 'asciidoc' offers a wide range of default text styles: * 'Emphasized text': created using \'text', used for emphasizing words and phrases * `Monospaced text`: created using \`text`, used for command / program names, file paths, in-line commands, option names and values * *Strong text*: created using \*text*, used for emphasizing concepts or names when first introduced in a section. There are also different built-in block styles that are used in our documentation: Complete paragraphs can be included literally by prepending each of their lines with whitespace. Use this for formatting complete commands on their own line, such as: pct set ID -option value ---- By surrounding a paragraph with lines containing at least four '-' characters, its content is formatted as listing. Use this for formatting file contents or command output. ---- Specially highlighted 'notes', 'warnings' and 'important' information can be created by starting a paragraph with `NOTE:`, `WARNING:` or `IMPORTANT:`: NOTE: this is a note WARNING: this is warning IMPORTANT: this is important information For each of these blocks (including lists and paragraphs), a block header can be defined by prepending the block with a `.' character and the header text: ----- .Title of List * First element * Second element * Third element ----- .Title of List * First element * Second element * Third element For example, block headers can be used to add file names/paths to file content listings. Online Help ----------- Each {pve} installation contains the full documentation in HTML format, which is then used as the target of various help buttons in the GUI. If after adding a specific entry in the documentation you want to create a help button pointing to that, you need to do the following: * add a string id in double square brackets before your documentation entry, like `[[qm_general_settings]]` * rebuild the `asciidoc-pve` script and the HTML chapter file containing your entry * add a property `onlineHelp` in the ExtJS panel you want to document, using the above string, like `onlineHelp: qm_general_settings` This panel has to be a child class of PVE.panel.InputPanel On calling `make install` the asciidoc-pve script will populate a JS object associating the string id and a link to the local HTML documentation, and the help button of your input panel will point to this link. Screenshots ----------- [thumbnail="screenshot/gui-datacenter-search.png"] First, it should be noted that we can display screenshots on 'html' and 'wiki' pages, and we can include them in printed documentation. But it is not possible to render them inside manual pages. So screenshot inside manual pages should be optional, i.e. the text should not depend on the visibility of the screenshot. You can include a screenshot by setting the 'thumbnail' attribute on a paragraph: ---- [thumbnail="screenshot/gui-datacenter-search.png"] First, it should be noted ... ---- The corresponding file need to reside inside folder `images/screenshot`, and should be in `.png` image format. We include the screenshots in printed documentation, and 'pdftex' uses the density (DPI) specified inside the file. So all screenshots should use the same density. We currently require the density set to 146 DPI, so that we can display a 1024 pixels wide image. You should not include larger screenshots (although it is possible). You can use the `./png-cleanup.pl` script to set the correct density. Simply use the following command to import a screenshot image: ---- # ./png-cleanup.pl screenshot.png images/screenshot/screenshot.png ---- TIP: You can use `identify -verbose screenshot.png` command to show all image attributes (from debian package 'imagemagick') .Default Screenshot Layout [thumbnail="screenshot/gui-datacenter-search.png"] We normally display screenshots as small thumbnail on the right side of a paragraph. On printed documentation, we render the full sized graphic just before the paragraph, or between the title and the text if the paragraph has a title. It is usually a good idea to add a title to paragraph with screenshots. [thumbnail="screenshot/gui-datacenter-search.png", float="left"] If you need to render many screenshots, it is possible to place them on the left side, so you can alternate the thumbnail position using the `float` attribute: ---- [thumbnail="screenshot/gui-datacenter-search.png", float="left"] If you need to render many screenshots ... ---- Please avoid to many consecutive screenshots to avoid rendering problems. Also verify the printed documentation to see if large screenshots create layout problems. Copyright --------- Copyright (C) 2016-2017 Proxmox Server Solutions Gmbh Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the link:LICENSE[LICENSE] file.