kuryr kubernetes design reference document
Co-Authored-By: Antoni Segura Puimedon <antonisp@celebdor.com> Co-Authored-By: Ilya Chukhnakov <ichukhnakov@mirantis.com> Change-Id: Iad305164b6083d0abc063fd9864c1c92c8e0dd7b
This commit is contained in:
Irena Berezovsky
parent
7c03b7f290
commit
420ef13559
Binary file not shown.
|
After Width: | Height: | Size: 153 KiB |
Binary file not shown.
|
After Width: | Height: | Size: 32 KiB |
|
|
@ -0,0 +1,367 @@
|
|||
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
|
||||
<!-- Created with Inkscape (http://www.inkscape.org/) -->
|
||||
|
||||
<svg
|
||||
xmlns:dc="http://purl.org/dc/elements/1.1/"
|
||||
xmlns:cc="http://creativecommons.org/ns#"
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:svg="http://www.w3.org/2000/svg"
|
||||
xmlns="http://www.w3.org/2000/svg"
|
||||
xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
|
||||
xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
|
||||
width="312.45016mm"
|
||||
height="115.37309mm"
|
||||
viewBox="0 0 1107.1069 408.80229"
|
||||
id="svg2"
|
||||
version="1.1"
|
||||
inkscape:version="0.91 r13725"
|
||||
sodipodi:docname="kuryr_k8s_components.svg"
|
||||
inkscape:export-filename="/home/celebdor/Pictures/kuryr_k8s_components.png"
|
||||
inkscape:export-xdpi="87.841972"
|
||||
inkscape:export-ydpi="87.841972">
|
||||
<defs
|
||||
id="defs4" />
|
||||
<sodipodi:namedview
|
||||
id="base"
|
||||
pagecolor="#ffffff"
|
||||
bordercolor="#666666"
|
||||
borderopacity="1.0"
|
||||
inkscape:pageopacity="0.0"
|
||||
inkscape:pageshadow="2"
|
||||
inkscape:zoom="0.7"
|
||||
inkscape:cx="761.05032"
|
||||
inkscape:cy="278.82653"
|
||||
inkscape:document-units="px"
|
||||
inkscape:current-layer="layer1"
|
||||
showgrid="false"
|
||||
inkscape:window-width="1920"
|
||||
inkscape:window-height="1016"
|
||||
inkscape:window-x="0"
|
||||
inkscape:window-y="27"
|
||||
inkscape:window-maximized="1"
|
||||
fit-margin-top="0"
|
||||
fit-margin-left="0"
|
||||
fit-margin-right="0"
|
||||
fit-margin-bottom="0" />
|
||||
<metadata
|
||||
id="metadata7">
|
||||
<rdf:RDF>
|
||||
<cc:Work
|
||||
rdf:about="">
|
||||
<dc:format>image/svg+xml</dc:format>
|
||||
<dc:type
|
||||
rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
|
||||
<dc:title></dc:title>
|
||||
</cc:Work>
|
||||
</rdf:RDF>
|
||||
</metadata>
|
||||
<g
|
||||
inkscape:label="Layer 1"
|
||||
inkscape:groupmode="layer"
|
||||
id="layer1"
|
||||
transform="translate(-302.04578,-262.43307)">
|
||||
<g
|
||||
id="g10788">
|
||||
<path
|
||||
id="rect4272-7-56"
|
||||
d="m 314.07901,283.91968 0,11.05326 -0.0603,-6.51645 -5.78332,0 0,6.72648 5.84361,0 0,12.20448 -0.0604,-6.51645 -5.78331,0 0,6.72646 5.8436,0 0,5.12605 25.24709,0 0,-28.80383 -25.24709,0 z"
|
||||
style="fill:#fcd95d;fill-opacity:1;stroke:#c39526;stroke-width:1.99129868;stroke-miterlimit:10;stroke-dasharray:none;stroke-opacity:1"
|
||||
inkscape:connector-curvature="0" />
|
||||
<path
|
||||
sodipodi:nodetypes="ssssscc"
|
||||
d="m 708.98112,415.51058 c -5.91999,0 -10.7191,-4.7991 -10.7191,-10.71909 0,-5.92 4.7991,-10.7191 10.7191,-10.7191 5.91999,0 10.71909,4.79911 10.71909,10.7191 0,5.91999 -4.7991,10.71909 -10.71909,10.71909 z m -209.72439,-10.7191 199.40037,0"
|
||||
style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.71899998;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
id="path7744"
|
||||
inkscape:connector-curvature="0" />
|
||||
<g
|
||||
id="g10323">
|
||||
<path
|
||||
id="path9651"
|
||||
style="fill:none;fill-opacity:1;fill-rule:evenodd;stroke:#c39526;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
d="m 303.21429,332.00506 196.07143,0 m -196.23994,-68.57199 195.9696,0 0,183.9598 -195.9696,0 z"
|
||||
inkscape:connector-curvature="0" />
|
||||
<path
|
||||
inkscape:connector-curvature="0"
|
||||
style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.56733572;stroke-miterlimit:10;stroke-dasharray:none;stroke-opacity:1"
|
||||
d="m 487.16969,415.85353 24.48063,0 0,-22.75823 -24.48063,0 z"
|
||||
id="rect4272"
|
||||
sodipodi:nodetypes="ccccc" />
|
||||
</g>
|
||||
<text
|
||||
sodipodi:linespacing="94%"
|
||||
id="text10308"
|
||||
y="293.79855"
|
||||
x="350.54324"
|
||||
style="font-style:normal;font-weight:normal;font-size:40px;line-height:93.99999976%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
|
||||
xml:space="preserve"><tspan
|
||||
style="font-weight:bold;font-size:27.5px;line-height:93.99999976%"
|
||||
y="293.79855"
|
||||
x="350.54324"
|
||||
id="tspan10310"
|
||||
sodipodi:role="line">K8s API</tspan><tspan
|
||||
style="font-weight:bold;font-size:27.5px;line-height:93.99999976%"
|
||||
id="tspan10312"
|
||||
y="319.64856"
|
||||
x="350.54324"
|
||||
sodipodi:role="line">server</tspan></text>
|
||||
<text
|
||||
sodipodi:linespacing="94%"
|
||||
id="text10308-7"
|
||||
y="400.58347"
|
||||
x="542.80176"
|
||||
style="font-style:normal;font-weight:normal;font-size:40px;line-height:93.99999976%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
|
||||
xml:space="preserve"><tspan
|
||||
style="font-weight:normal;font-size:30px;line-height:93.99999976%"
|
||||
id="tspan10312-2"
|
||||
y="400.58347"
|
||||
x="542.80176"
|
||||
sodipodi:role="line">Patch</tspan></text>
|
||||
<path
|
||||
sodipodi:nodetypes="ssssscc"
|
||||
d="m 686.50743,529.42314 c -5.12686,-2.95999 -6.88346,-9.51569 -3.92347,-14.64255 2.96,-5.12687 9.5157,-6.88346 14.64257,-3.92346 5.12686,2.95999 6.88344,9.51569 3.92345,14.64256 -2.96,5.12685 -9.51569,6.88345 -14.64255,3.92345 z m -176.2671,-114.1452 172.68579,99.70018"
|
||||
style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.71899998;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
id="path7744-0"
|
||||
inkscape:connector-curvature="0" />
|
||||
<text
|
||||
transform="matrix(0.8660254,0.5,-0.5,0.8660254,0,0)"
|
||||
sodipodi:linespacing="94%"
|
||||
id="text10308-7-2"
|
||||
y="128.42073"
|
||||
x="675.72711"
|
||||
style="font-style:normal;font-weight:normal;font-size:40px;line-height:93.99999976%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
|
||||
xml:space="preserve"><tspan
|
||||
style="font-weight:normal;font-size:30px;line-height:93.99999976%"
|
||||
id="tspan10312-2-3"
|
||||
y="128.42073"
|
||||
x="675.72711"
|
||||
sodipodi:role="line">Watch</tspan></text>
|
||||
</g>
|
||||
<text
|
||||
xml:space="preserve"
|
||||
style="font-style:normal;font-weight:normal;font-size:40px;line-height:93.99999976%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
|
||||
x="941.92871"
|
||||
y="293.61118"
|
||||
id="text10308-9-1"
|
||||
sodipodi:linespacing="94%"><tspan
|
||||
sodipodi:role="line"
|
||||
x="941.92871"
|
||||
y="293.61118"
|
||||
style="font-weight:bold;font-size:27.5px;line-height:93.99999976%"
|
||||
id="tspan10499-9">Controller</tspan></text>
|
||||
<g
|
||||
id="g10777">
|
||||
<g
|
||||
id="g10258">
|
||||
<path
|
||||
inkscape:connector-curvature="0"
|
||||
style="fill:#fcd95d;fill-opacity:1;stroke:#c39526;stroke-width:1.99129868;stroke-miterlimit:10;stroke-dasharray:none;stroke-opacity:1"
|
||||
d="m 312.89554,491.27247 0,11.05326 -0.0603,-6.51645 -5.78332,0 0,6.72648 5.84361,0 0,12.20448 -0.0604,-6.51645 -5.78331,0 0,6.72646 5.8436,0 0,5.12605 25.24709,0 0,-28.80383 -25.24709,0 z"
|
||||
id="rect4272-7-3" />
|
||||
<path
|
||||
inkscape:connector-curvature="0"
|
||||
id="path9651-7-0"
|
||||
style="fill:none;fill-opacity:1;fill-rule:evenodd;stroke:#c39526;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
d="m 304.36656,524.84756 196.07138,0 m -196.23989,-38.57199 195.96959,0 0,183.9598 -195.96959,0 z"
|
||||
sodipodi:nodetypes="ccccccc" />
|
||||
</g>
|
||||
<path
|
||||
sodipodi:nodetypes="ccccc"
|
||||
id="rect4272-6"
|
||||
d="m 491.84611,571.31481 24.48063,0 0,-22.75823 -24.48063,0 z"
|
||||
style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.56733572;stroke-miterlimit:10;stroke-dasharray:none;stroke-opacity:1"
|
||||
inkscape:connector-curvature="0" />
|
||||
<path
|
||||
sodipodi:nodetypes="ccccc"
|
||||
id="rect4272-6-1"
|
||||
d="m 490.83596,655.33512 24.48063,0 0,-22.75824 -24.48063,0 z"
|
||||
style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.56733572;stroke-miterlimit:10;stroke-dasharray:none;stroke-opacity:1"
|
||||
inkscape:connector-curvature="0" />
|
||||
<path
|
||||
sodipodi:nodetypes="ccccc"
|
||||
d="m 676.87881,515.09533 c -6.11397,1.84782 -9.78976,8.07492 -8.4533,14.32065 1.34469,6.24318 7.25067,10.4132 13.58377,9.59021 m -165.80329,23.31018 153.01927,-33.07206"
|
||||
style="fill:none;fill-opacity:1;stroke:#000000;stroke-width:1.78999996;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
id="path7157-1-7"
|
||||
inkscape:connector-curvature="0" />
|
||||
<text
|
||||
sodipodi:linespacing="94%"
|
||||
id="text10308-2"
|
||||
y="516.46832"
|
||||
x="352.51373"
|
||||
style="font-style:normal;font-weight:normal;font-size:40px;line-height:93.99999976%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
|
||||
xml:space="preserve"><tspan
|
||||
style="font-weight:bold;font-size:27.5px;line-height:93.99999976%"
|
||||
id="tspan10312-8"
|
||||
y="516.46832"
|
||||
x="352.51373"
|
||||
sodipodi:role="line">Kubelet</tspan></text>
|
||||
<path
|
||||
sodipodi:nodetypes="ccccc"
|
||||
d="m 674.18723,631.99181 c -6.36557,0.52403 -11.26595,5.84141 -11.26953,12.22852 0.005,6.38635 4.90471,11.70259 11.26953,12.22656 m -159.16189,-12.22663 148.71032,0"
|
||||
style="fill:none;fill-opacity:1;stroke:#000000;stroke-width:1.78999996;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
id="path7157-1-78"
|
||||
inkscape:connector-curvature="0" />
|
||||
</g>
|
||||
<g
|
||||
id="g10755">
|
||||
<g
|
||||
id="g10258-9"
|
||||
transform="translate(600.21336,0)">
|
||||
<path
|
||||
inkscape:connector-curvature="0"
|
||||
style="fill:#fcd95d;fill-opacity:1;stroke:#c39526;stroke-width:1.99129868;stroke-miterlimit:10;stroke-dasharray:none;stroke-opacity:1"
|
||||
d="m 312.89554,491.27247 0,11.05326 -0.0603,-6.51645 -5.78332,0 0,6.72648 5.84361,0 0,12.20448 -0.0604,-6.51645 -5.78331,0 0,6.72646 5.8436,0 0,5.12605 25.24709,0 0,-28.80383 -25.24709,0 z"
|
||||
id="rect4272-7-3-3" />
|
||||
<path
|
||||
inkscape:connector-curvature="0"
|
||||
id="path9651-7-0-6"
|
||||
style="fill:none;fill-opacity:1;fill-rule:evenodd;stroke:#c39526;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
d="m 304.36656,524.84756 196.07138,0 m -196.23989,-38.57199 195.96959,0 0,183.9598 -195.96959,0 z"
|
||||
sodipodi:nodetypes="ccccccc" />
|
||||
</g>
|
||||
<path
|
||||
sodipodi:nodetypes="ccccc"
|
||||
id="rect4272-6-5"
|
||||
d="m 894.37159,582.76657 24.48063,0 0,-22.75823 -24.48063,0 z"
|
||||
style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.56733572;stroke-miterlimit:10;stroke-dasharray:none;stroke-opacity:1"
|
||||
inkscape:connector-curvature="0" />
|
||||
<text
|
||||
sodipodi:linespacing="94%"
|
||||
id="text10308-9"
|
||||
y="516.61121"
|
||||
x="938.94232"
|
||||
style="font-style:normal;font-weight:normal;font-size:40px;line-height:93.99999976%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
|
||||
xml:space="preserve"><tspan
|
||||
id="tspan10499"
|
||||
style="font-weight:bold;font-size:27.5px;line-height:93.99999976%"
|
||||
y="516.61121"
|
||||
x="938.94232"
|
||||
sodipodi:role="line">CNI Driver</tspan></text>
|
||||
<path
|
||||
sodipodi:nodetypes="ccccc"
|
||||
d="m 699.98277,535.66993 c 6.31869,0.93231 12.29668,-3.13608 13.74775,-9.35617 1.44254,-6.22131 -2.12479,-12.50969 -8.20524,-14.46255 m 188.62565,55.71233 -181.2171,-41.43509"
|
||||
style="fill:none;fill-opacity:1;stroke:#000000;stroke-width:1.78999996;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
id="path7157-1-6"
|
||||
inkscape:connector-curvature="0" />
|
||||
<path
|
||||
sodipodi:nodetypes="ccccc"
|
||||
id="rect4272-6-1-3"
|
||||
d="m 894.37159,655.33512 24.48063,0 0,-22.75824 -24.48063,0 z"
|
||||
style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.56733572;stroke-miterlimit:10;stroke-dasharray:none;stroke-opacity:1"
|
||||
inkscape:connector-curvature="0" />
|
||||
<path
|
||||
sodipodi:nodetypes="ssssscc"
|
||||
d="m 684.06996,632.64311 c 5.91999,0 10.7191,4.7991 10.7191,10.71909 0,5.92 -4.7991,10.7191 -10.7191,10.7191 -5.91999,0 -10.71909,-4.79911 -10.71909,-10.7191 0,-5.91999 4.7991,-10.71909 10.71909,-10.71909 z m 209.72439,10.7191 -199.40037,0"
|
||||
style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.71899998;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
id="path7744-1"
|
||||
inkscape:connector-curvature="0" />
|
||||
<text
|
||||
sodipodi:linespacing="94%"
|
||||
id="text10308-7-5"
|
||||
y="640.83807"
|
||||
x="754.02399"
|
||||
style="font-style:normal;font-weight:normal;font-size:40px;line-height:93.99999976%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
|
||||
xml:space="preserve"><tspan
|
||||
style="font-weight:normal;font-size:30px;line-height:93.99999976%"
|
||||
id="tspan10312-2-0"
|
||||
y="640.83807"
|
||||
x="754.02399"
|
||||
sodipodi:role="line">CNI 0.3.0</tspan></text>
|
||||
</g>
|
||||
<g
|
||||
id="g10768">
|
||||
<path
|
||||
sodipodi:nodetypes="ccccc"
|
||||
d="m 716.24135,416.7326 c 6.36557,-0.52403 11.26595,-5.84141 11.26953,-12.22852 -0.005,-6.38635 -4.90471,-11.70259 -11.26953,-12.22656 m 178.7336,12.22663 -168.28203,0"
|
||||
style="fill:none;fill-opacity:1;stroke:#000000;stroke-width:1.78999996;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
id="path7157-1"
|
||||
inkscape:connector-curvature="0" />
|
||||
<g
|
||||
id="g10283">
|
||||
<path
|
||||
inkscape:connector-curvature="0"
|
||||
style="fill:#fcd95d;fill-opacity:1;stroke:#c39526;stroke-width:1.99129868;stroke-miterlimit:10;stroke-dasharray:none;stroke-opacity:1"
|
||||
d="m 914.733,269.45962 0,11.05326 -0.0603,-6.51645 -5.78332,0 0,6.72648 5.84361,0 0,12.20448 -0.0604,-6.51645 -5.78331,0 0,6.72646 5.8436,0 0,5.12605 25.24709,0 0,-28.80383 -25.24709,0 z"
|
||||
id="rect4272-7" />
|
||||
<path
|
||||
inkscape:connector-curvature="0"
|
||||
id="path9651-7"
|
||||
style="fill:none;fill-opacity:1;fill-rule:evenodd;stroke:#c39526;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
d="m 904.57992,303.50743 196.07138,0 m -196.23989,-38.57199 195.96959,0 0,183.9598 -195.96959,0 z"
|
||||
sodipodi:nodetypes="ccccccc" />
|
||||
</g>
|
||||
<path
|
||||
sodipodi:nodetypes="ccccc"
|
||||
id="rect4272-2-1"
|
||||
d="m 1092.7597,416.23354 24.4806,0 0,-22.75823 -24.4806,0 z"
|
||||
style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.56733572;stroke-miterlimit:10;stroke-dasharray:none;stroke-opacity:1"
|
||||
inkscape:connector-curvature="0" />
|
||||
<path
|
||||
sodipodi:nodetypes="ccccc"
|
||||
id="rect4272-2"
|
||||
d="m 894.37159,416.23354 24.48063,0 0,-22.75823 -24.48063,0 z"
|
||||
style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.56733572;stroke-miterlimit:10;stroke-dasharray:none;stroke-opacity:1"
|
||||
inkscape:connector-curvature="0" />
|
||||
<path
|
||||
sodipodi:nodetypes="ccccc"
|
||||
d="m 1160.1615,430.93777 c -5.1038,-3.84018 -12.2995,-3.12547 -16.5481,1.64362 -4.238,4.77756 -4.1155,12.0029 0.2911,16.62552 m -26.4881,-38.86841 26.8081,22.78662"
|
||||
style="fill:none;fill-opacity:1;stroke:#000000;stroke-width:1.78999996;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
id="path7157-1-78-3"
|
||||
inkscape:connector-curvature="0" />
|
||||
</g>
|
||||
<g
|
||||
id="g10744">
|
||||
<g
|
||||
id="g10258-9-0"
|
||||
transform="translate(907.98501,-110.67008)">
|
||||
<path
|
||||
inkscape:connector-curvature="0"
|
||||
style="fill:#fcd95d;fill-opacity:1;stroke:#c39526;stroke-width:1.99129868;stroke-miterlimit:10;stroke-dasharray:none;stroke-opacity:1"
|
||||
d="m 312.89554,491.27247 0,11.05326 -0.0603,-6.51645 -5.78332,0 0,6.72648 5.84361,0 0,12.20448 -0.0604,-6.51645 -5.78331,0 0,6.72646 5.8436,0 0,5.12605 25.24709,0 0,-28.80383 -25.24709,0 z"
|
||||
id="rect4272-7-3-3-6" />
|
||||
<path
|
||||
inkscape:connector-curvature="0"
|
||||
id="path9651-7-0-6-2"
|
||||
style="fill:none;fill-opacity:1;fill-rule:evenodd;stroke:#c39526;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
d="m 304.36656,524.84756 196.07138,0 m -196.23989,-38.57199 195.96959,0 0,183.9598 -195.96959,0 z"
|
||||
sodipodi:nodetypes="ccccccc" />
|
||||
</g>
|
||||
<text
|
||||
sodipodi:linespacing="94%"
|
||||
id="text10308-9-3"
|
||||
y="403.61429"
|
||||
x="1259.6802"
|
||||
style="font-style:normal;font-weight:normal;font-size:40px;line-height:93.99999976%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
|
||||
xml:space="preserve"><tspan
|
||||
id="tspan10499-6"
|
||||
style="font-weight:bold;font-size:27.5px;line-height:93.99999976%"
|
||||
y="403.61429"
|
||||
x="1259.6802"
|
||||
sodipodi:role="line">Neutron</tspan></text>
|
||||
<path
|
||||
sodipodi:nodetypes="ccccc"
|
||||
id="rect4272-2-1-0"
|
||||
d="m 1200.9529,496.03559 24.4806,0 0,-22.75823 -24.4806,0 z"
|
||||
style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.56733572;stroke-miterlimit:10;stroke-dasharray:none;stroke-opacity:1"
|
||||
inkscape:connector-curvature="0" />
|
||||
<path
|
||||
sodipodi:nodetypes="ssssscc"
|
||||
d="m 1168.0237,442.14629 c 4.5321,3.80883 5.1183,10.57041 1.3095,15.10242 -3.8088,4.53202 -10.5704,5.11828 -15.1024,1.30943 -4.532,-3.80876 -5.1182,-10.57036 -1.3094,-15.10236 3.8089,-4.53201 10.5704,-5.11827 15.1023,-1.30949 z m 32.4384,42.124 -31.4313,-27.27571"
|
||||
style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.71899998;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
|
||||
id="path7744-1-6"
|
||||
inkscape:connector-curvature="0" />
|
||||
<text
|
||||
transform="matrix(0.69810508,0.71599532,-0.71599532,0.69810508,0,0)"
|
||||
sodipodi:linespacing="94%"
|
||||
id="text10308-7-5-2"
|
||||
y="-494.80469"
|
||||
x="1149.7618"
|
||||
style="font-style:normal;font-weight:normal;font-size:40px;line-height:93.99999976%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
|
||||
xml:space="preserve"><tspan
|
||||
style="font-weight:normal;font-size:30px;line-height:93.99999976%"
|
||||
id="tspan10312-2-0-0"
|
||||
y="-494.80469"
|
||||
x="1149.7618"
|
||||
sodipodi:role="line">v2</tspan></text>
|
||||
</g>
|
||||
</g>
|
||||
</svg>
|
||||
|
After Width: | Height: | Size: 19 KiB |
Binary file not shown.
|
After Width: | Height: | Size: 149 KiB |
File diff suppressed because it is too large
Load Diff
|
After Width: | Height: | Size: 52 KiB |
|
|
@ -0,0 +1,46 @@
|
|||
..
|
||||
Licensed under the Apache License, Version 2.0 (the "License"); you may
|
||||
not use this file except in compliance with the License. You may obtain
|
||||
a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
License for the specific language governing permissions and limitations
|
||||
under the License.
|
||||
|
||||
Convention for heading levels in Neutron devref:
|
||||
======= Heading 0 (reserved for the title in a document)
|
||||
------- Heading 1
|
||||
~~~~~~~ Heading 2
|
||||
+++++++ Heading 3
|
||||
''''''' Heading 4
|
||||
(Avoid deeper levels because they do not render well.)
|
||||
|
||||
|
||||
Design and Developer Guides
|
||||
===========================
|
||||
|
||||
In the Design and Developer Guides, you will find information on kuryr
|
||||
kubernetes integration plans and design decisions. There are sections that
|
||||
contain specific integration components description and detailed designs.
|
||||
Finally, the developer guide includes information about kuryr kubernetes
|
||||
testing infrastructure.
|
||||
|
||||
|
||||
Design documents
|
||||
-----------------
|
||||
.. toctree::
|
||||
:maxdepth: 3
|
||||
|
||||
kuryr_kubernetes_design
|
||||
|
||||
|
||||
Indices and tables
|
||||
------------------
|
||||
|
||||
* :ref:`genindex`
|
||||
* :ref:`modindex`
|
||||
* :ref:`search`
|
||||
|
|
@ -0,0 +1,188 @@
|
|||
..
|
||||
This work is licensed under a Creative Commons Attribution 3.0 Unported
|
||||
License.
|
||||
|
||||
http://creativecommons.org/licenses/by/3.0/legalcode
|
||||
|
||||
Convention for heading levels in Neutron devref:
|
||||
======= Heading 0 (reserved for the title in a document)
|
||||
------- Heading 1
|
||||
~~~~~~~ Heading 2
|
||||
+++++++ Heading 3
|
||||
''''''' Heading 4
|
||||
(Avoid deeper levels because they do not render well.)
|
||||
|
||||
===================================
|
||||
Kuryr Kubernetes Integration Design
|
||||
===================================
|
||||
|
||||
|
||||
Purpose
|
||||
-------
|
||||
The purpose of this document is to present the main Kuryr-K8s integration
|
||||
components and capture the design decisions of each component currently taken
|
||||
by the kuryr team.
|
||||
|
||||
Goal Statement
|
||||
--------------
|
||||
Enable OpenStack Neutron realization of the Kubernetes networking. Start by
|
||||
supporting network connectivity and expand to support advanced features, such
|
||||
as Network Policies. In the future, it may be extended to some other
|
||||
openstack services.
|
||||
|
||||
Overview
|
||||
--------
|
||||
In order to integrate Neutron into kubernetes networking, 2 components are
|
||||
introduced: Controller and CNI Driver.
|
||||
Controller is a supervisor component responsible to maintain translation of
|
||||
networking relevant K8s model into the OpenStack (i.e. Neutron) model.
|
||||
This can be considered as a centralized service (supporting HA mode in the
|
||||
future).
|
||||
CNI driver is responsible for binding kubernetess pods on worker nodes into
|
||||
Neutron ports ensuring requested level of isolation.
|
||||
Please see below the component view of the integrated system:
|
||||
|
||||
.. image:: https://raw.githubusercontent.com/openstack/kuryr-kubernetes/master/doc/images/kuryr_k8s_components.png
|
||||
:alt: integration components
|
||||
:align: center
|
||||
|
||||
Design Principles
|
||||
-----------------
|
||||
1. Loose coupling between integration components.
|
||||
2. Flexible deployment options to support different project, subnet and
|
||||
security groups assignment profiles.
|
||||
3. The communication of the pod binding data between Controller and CNI driver
|
||||
should rely on existing communication channels, currently added to the pod
|
||||
metadata via annotations.
|
||||
4. CNI Driver should not depend on Neutron. It gets all required details
|
||||
from K8s API server (currenltly through K8s annotations), therefore
|
||||
depending on Controller to perform its translation tasks.
|
||||
5. Allow different neutron backends to bind K8s pods without code modification.
|
||||
This means that both Controller and CNI binding mechanism should allow
|
||||
loading of the vif management and binding components, manifested via
|
||||
configuration. If some vendor requires some extra code, it should be handled
|
||||
in one of the stevedore drivers.
|
||||
|
||||
Kuryr Controller Design
|
||||
-----------------------
|
||||
Controller is responsible for watching Kubernetess API endpoints to make sure
|
||||
that the corresponding model is maintained in Neutron. Controller updates K8s
|
||||
resources endpoints’ annotations to keep neutron details required by the CNI
|
||||
driver as well as for the model mapping persistency.
|
||||
|
||||
Controller is composed from the following components:
|
||||
|
||||
Watcher
|
||||
~~~~~~~
|
||||
Watcher is a common software component used by both the Controller and the CNI
|
||||
driver. Watcher connects to K8s API. Watcher’s responsibility is to observe the
|
||||
registered (either on startup or dynamically during its runtime) endpoints and
|
||||
invoke registered callback handler (pipeline) to pass all events from
|
||||
registered endpoints.
|
||||
|
||||
Event Handler
|
||||
~~~~~~~~~~~~~
|
||||
EventHandler is an interface class for the K8s event handling. There are
|
||||
several 'wrapper' event handlers that can be composed to implement Controller
|
||||
handling pipeline.
|
||||
|
||||
**Retry** Event Handler is used for handling specified failures during event
|
||||
processing. It can be used to ‘wrap’ another EventHandler and in case of
|
||||
specified error will retry the wrapped event handler invocation within
|
||||
specified timeout. In case of persistent failure, Retry will raise the wrapped
|
||||
EventHandler exception.
|
||||
|
||||
**Async** Event Handler is used to execute event handling asynchronously.
|
||||
Events are grouped based on the specified ‘thread_groups’. Events of the same
|
||||
group are processed in order of arrival. Thread group maps to an unique K8s
|
||||
resource (each Pod, Service, etc.). Async can be used to ‘wrap’ another
|
||||
EventHandler. Queues per thread group are added dynamically once relevant
|
||||
events arrive and removed once queue is empty.
|
||||
|
||||
**Dispatcher** is an Event Handler that distributes events to registered
|
||||
handlers based on event content and handler predicate provided during event
|
||||
handler registration.
|
||||
|
||||
ControllerPipeline
|
||||
~~~~~~~~~~~~~~~~~~
|
||||
ControllerPipeline serves as an event dispatcher of the Watcher for Kuryr-K8s
|
||||
controller Service. Currently watched endpoints are 'pods', 'services' and
|
||||
'endpoints'. K8s resource event handlers (Event Consumers) are registered into
|
||||
the Controller Pipeline. There is a special EventConsumer, ResourceEventHandler,
|
||||
that provides API for K8s event handling. When a watched event arrives, it is
|
||||
processed by all Resource Event Handlers registered for specific K8s object
|
||||
kind. Pipeline retries on resource event handler invocation in
|
||||
case of the ResourceNotReady exception till it succeeds or the number of
|
||||
retries (time-based) is reached. Any unrecovered failure is logged without
|
||||
affecting other Handlers (of the current and other events).
|
||||
Events of the same group (same K8s object) are handled sequentially in the
|
||||
order arrival. Events of different K8s objects are handled concurenlty.
|
||||
|
||||
.. image:: https://raw.githubusercontent.com/openstack/kuryr-kubernetes/master/doc/images/controller_pipeline.png
|
||||
:alt: controller pipeline
|
||||
:align: center
|
||||
|
||||
ResourceEventHandler
|
||||
~~~~~~~~~~~~~~~~~~~~
|
||||
ResourceEventHandler is a convenience base class for the K8s event processing.
|
||||
The specific Handler associates itself with specific K8s object kind (through
|
||||
setting OBJECT_KIND) and is expected to implement at least one of the methods
|
||||
of the base class to handle at least one of the ADDED/MODIFIED/DELETED events
|
||||
of the k8s object. For details, see `k8s-api <https://github.com/kubernetes/kubernetes/blob/release-1.4/docs/devel/api-conventions.md#types-kinds>`_.
|
||||
Since both ADDED and MODIFIED event types trigger very similar sequence of
|
||||
actions, Handler has ‘on_present’ method that is invoked for both event types.
|
||||
The specific Handler implementation should strive to put all the common ADDED
|
||||
and MODIFIED event handling logic in this method to avoid code duplication.
|
||||
|
||||
Providers
|
||||
~~~~~~~~~
|
||||
Provider (Drivers) are used by ResourceEventHandlers to manage specific aspects
|
||||
of the K8s resource in the OpenStack domain. For example, creating a K8s Pod
|
||||
will require a neutron port to be created on a specific network with the proper
|
||||
security groups applied to it. There will be dedicated Drivers for Project,
|
||||
Subnet, Port and Security Groups settings in neutron. For instance, the Handler
|
||||
that processes pod events, will use PodVIFDriver, PodProjectDriver,
|
||||
PodSubnetsDriver and PodSecurityGroupsDriver. The Drivers model is introduced
|
||||
in order to allow flexibility in the K8s model mapping to the OpenStack. There
|
||||
can be different drivers that do Neutron resources management, i.e. create on
|
||||
demand or grab one from the precreated pool. There can be different drivers for
|
||||
the Project management, i.e. single Tenant or multiple. Same goes for the other
|
||||
drivers. There are drivers that handle the Pod based on the project, subnet
|
||||
and security groups specified via configuration settings during cluster
|
||||
deployment phase.
|
||||
|
||||
GenericPodVifDriver
|
||||
~~~~~~~~~~~~~~~~~~~
|
||||
PodVifDriver subclass should implement request_vif, release_vif and
|
||||
activate_vif methods. In case request_vif returns Vif object in down state,
|
||||
Controller will invoke activate_vif. Vif ‘active’ state is required by the
|
||||
CNI driver to complete pod handling.
|
||||
The GenericPodVifDriver is the default driver that creates neutron port upon
|
||||
Pod addition and deletes port upon Pod removal.
|
||||
|
||||
CNI Driver
|
||||
----------
|
||||
Kuryr kubernetes integration takes advantage of the kubernetes `CNI plugin <http://kubernetes.io/docs/admin/network-plugins/#cni>`_
|
||||
and introduces Kuryr-K8s CNI Driver. Based on design decision, kuryr-kubernetes
|
||||
CNI Driver should get all information required to plug and bind Pod via
|
||||
kubernetes control plane and should not depend on Neutron. CNI plugin/driver
|
||||
is invoked in a blocking manner by kubelet (k8s node agent), therefore it is
|
||||
expected to return when either success or error state determined.
|
||||
|
||||
Kuryr-K8s CNI Driver has 2 sources for Pod binding information: kubelet/node
|
||||
environment and K8s API. The Kuryr-K8s Controller Service and CNI share the
|
||||
contract that defines Pod annotation that Controller Server adds and CNI
|
||||
driver reads. The contract is `os_vif VIF <https://github.com/openstack/os-vif/blob/master/os_vif/objects/vif.py>`_
|
||||
|
||||
With VIF object loaded from the Pod object annotation, the CNI driver performs
|
||||
Pod plugging. Kuryr-K8s CNI driver uses ov_vif library to perform Pod plug and
|
||||
unplug operations. The CNI driver should complete its job and return control to
|
||||
Kubelet when all the network plugging is completed.
|
||||
In the cases when Neutron initially creates port in ‘Down’ state, CNI driver
|
||||
will plug the Pod, but will have to watch the Pod annotations for vif state
|
||||
change to ‘Active’ before returning the control to the caller.
|
||||
|
||||
.. image:: https://raw.githubusercontent.com/openstack/kuryr-kubernetes/master/doc/images/pod_creation_flow.png
|
||||
:alt: Controller-CNI interaction
|
||||
:align: center
|
||||
|
||||
|
|
@ -16,6 +16,14 @@ Contents:
|
|||
usage
|
||||
contributing
|
||||
|
||||
Developer Docs
|
||||
==============
|
||||
|
||||
.. toctree::
|
||||
:maxdepth: 3
|
||||
|
||||
devref/index
|
||||
|
||||
Indices and tables
|
||||
==================
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue