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Add pod diagram and tex sources (#472)

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Dmitry Dolgov
2019-01-31 12:17:11 +01:00
committed by Sergey Dudoladov
parent 3f8b760118
commit 90c25038d7
7 changed files with 218 additions and 2 deletions
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docs/diagrams/Makefile
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OBJ=$(patsubst %.tex, %.png, $(wildcard *.tex))
.PHONY: all
all: $(OBJ)
%.pdf: %.tex
lualatex $< -shell-escape $@
%.png: %.pdf
convert -flatten -density 300 $< -quality 90 $@
docs/diagrams/operator.png
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docs/diagrams/operator.tex
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\documentclass{article}
\usepackage{tikz}
\usepackage[graphics,tightpage,active]{preview}
\usetikzlibrary{arrows, shadows.blur, positioning, fit, calc, backgrounds}
\usepackage{lscape}
\pagenumbering{gobble}
\PreviewEnvironment{tikzpicture}
\PreviewEnvironment{equation}
\PreviewEnvironment{equation*}
\newlength{\imagewidth}
\newlength{\imagescale}
\pagestyle{empty}
\thispagestyle{empty}
\begin{document}
\begin{center}
\begin{tikzpicture}[
scale=0.5,transform shape,
font=\sffamily,
every matrix/.style={ampersand replacement=\&,column sep=2cm,row sep=2cm},
operator/.style={draw,solid,thick,circle,fill=red!20,inner sep=.3cm, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
component/.style={draw,solid,thick,rounded corners,fill=yellow!20,inner sep=.3cm, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
border/.style={draw,dashed,rounded corners,fill=gray!20,inner sep=.3cm, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
pod/.style={draw,solid,thick,rounded corners,fill=blue!20, inner sep=.3cm, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
service/.style={draw,solid,thick,rounded corners,fill=blue!20, inner sep=.3cm, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
endpoint/.style={draw,solid,thick,rounded corners,fill=blue!20, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
secret/.style={draw,solid,thick,rounded corners,fill=blue!20, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
pvc/.style={draw,solid,thick,rounded corners,fill=blue!20, inner sep=.3cm, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
label/.style={rectangle,inner sep=0,outer sep=0},
to/.style={->,>=stealth',shorten >=1pt,semithick,font=\sffamily\footnotesize},
every node/.style={align=center}]
% Position the nodes using a matrix layout
\matrix{
\& \node[component] (crd) {CRD}; \\
\& \node[operator] (operator) {Operator}; \\
\path
node[service] (service-master) {Master}
node[label, right of=service-master] (service-middle) {}
node[label, below of=service-middle] (services-label) {Services}
node[service, right=.5cm of service-master] (service-replica) {Replica}
node[border, behind path,
fit=(service-master)(service-replica)(services-label)
] (services) {};
\&
\node[component] (sts) {Statefulset}; \& \node[component] (pdb) {Pod Disruption Budget}; \\
\path
node[service] (master-endpoint) {Master}
node[service, right=.5cm of master-endpoint] (replica-endpoint) {Replica}
node[label, right of=master-endpoint] (endpoint-middle) {}
node[label, below of=endpoint-middle] (endpoint-label) {Endpoints}
node[border, behind path,
fit=(master-endpoint)(replica-endpoint)(endpoint-label)
] (endpoints) {}; \&
\node[component] (pod-template) {Pod Template}; \&
\node[border] (secrets) {
\begin{tikzpicture}[]
\node[secret] (users-secret) at (0, 0) {Users};
\node[secret] (robots-secret) at (2, 0) {Robots};
\node[secret] (standby-secret) at (4, 0) {Standby};
\end{tikzpicture} \\
Secrets
}; \\ \&
\path
node[pod] (replica1-pod) {Replica}
node[pod, left=.5cm of replica1-pod] (master-pod) {Master}
node[pod, right=.5cm of replica1-pod] (replica2-pod) {Replica}
node[label, below of=replica1-pod] (pod-label) {Pods}
node[border, behind path,
fit=(master-pod)(replica1-pod)(replica2-pod)(pod-label)
] (pods) {}; \\ \&
\path
node[pvc] (replica1-pvc) {Replica}
node[pvc, left=.5cm of replica1-pvc] (master-pvc) {Master}
node[pvc, right=.5cm of replica1-pvc] (replica2-pvc) {Replica}
node[label, below of=replica1-pvc] (pvc-label) {Persistent Volume Claims}
node[border, behind path,
fit=(master-pvc)(replica1-pvc)(replica2-pvc)(pvc-label)
] (pvcs) {}; \&
\\ \& \\
};
% Draw the arrows between the nodes and label them.
\draw[to] (crd) -- node[midway,above] {} node[midway,below] {} (operator);
\draw[to] (operator) -- node[midway,above] {} node[midway,below] {} (sts);
\draw[to] (operator) -- node[midway,above] {} node[midway,below] {} (secrets);
\draw[to] (operator) -| node[midway,above] {} node[midway,below] {} (pdb);
\draw[to] (service-master) -- node[midway,above] {} node[midway,below] {} (master-endpoint);
\draw[to] (service-replica) -- node[midway,above] {} node[midway,below] {} (replica-endpoint);
\draw[to] (master-pod) -- node[midway,above] {} node[midway,below] {} (master-pvc);
\draw[to] (replica1-pod) -- node[midway,above] {} node[midway,below] {} (replica1-pvc);
\draw[to] (replica2-pod) -- node[midway,above] {} node[midway,below] {} (replica2-pvc);
\draw[to] (operator) -| node[midway,above] {} node[midway,below] {} (services);
\draw[to] (sts) -- node[midway,above] {} node[midway,below] {} (pod-template);
\draw[to] (pod-template) -- node[midway,above] {} node[midway,below] {} (pods);
\end{tikzpicture}
\end{center}
\end{document}
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docs/diagrams/pod.tex
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\documentclass{article}
\usepackage{tikz}
\usepackage[graphics,tightpage,active]{preview}
\usetikzlibrary{arrows, shadows.blur, positioning, fit, calc, backgrounds}
\usepackage{lscape}
\pagenumbering{gobble}
\PreviewEnvironment{tikzpicture}
\PreviewEnvironment{equation}
\PreviewEnvironment{equation*}
\newlength{\imagewidth}
\newlength{\imagescale}
\pagestyle{empty}
\thispagestyle{empty}
\begin{document}
\begin{center}
\begin{tikzpicture}[
scale=0.5,transform shape,
font=\sffamily,
every matrix/.style={ampersand replacement=\&,column sep=2cm,row sep=2cm},
pod/.style={draw,solid,thick,circle,fill=red!20,inner sep=.3cm, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
component/.style={draw,solid,thick,rounded corners,fill=yellow!20,inner sep=.3cm, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
border/.style={draw,dashed,rounded corners,fill=gray!20,inner sep=.3cm, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
volume/.style={draw,solid,thick,rounded corners,fill=blue!20, inner sep=.3cm, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
sidecar/.style={draw,solid,thick,rounded corners,fill=blue!20, inner sep=.3cm, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
k8s-label/.style={draw,solid,thick,rounded corners,fill=blue!20, minimum width=1.5cm, inner sep=.3cm, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
affinity/.style={draw,solid,thick,rounded corners,fill=blue!20, minimum width=2cm, inner sep=.3cm, blur shadow={shadow blur steps=5,shadow blur extra rounding=1.3pt}},
label/.style={rectangle,inner sep=0,outer sep=0},
to/.style={->,>=stealth',shorten >=1pt,semithick,font=\sffamily\footnotesize},
every node/.style={align=center}]
% Position the nodes using a matrix layout
\matrix{
\path
node[k8s-label] (app-label) {App}
node[k8s-label, right=.25cm of app-label] (role-label) {Role}
node[k8s-label, right=.25cm of role-label] (custom-label) {Custom}
node[label, below of=role-label] (k8s-label-label) {K8S Labels}
node[border, behind path,
fit=(app-label)(role-label)(custom-label)(k8s-label-label)
] (k8s-labels) {}; \& \&
\path
node[affinity] (affinity) {Affinity}
node[label, right=.25cm of affinity] (affinity-middle) {}
node[affinity, right=.25cm of affinity-middle] (anti-affinity) {Anti-affinity}
node[label, below of=affinity-middle] (affinity-label) {Assigning to nodes}
node[border, behind path,
fit=(affinity)(anti-affinity)(affinity-label)
] (affinity) {}; \\
\& \node[pod] (pod) {Pod}; \& \\
\path
node[volume, minimum width={width("shm-volume")}] (data-volume) {Data}
node[volume, right=.25cm of data-volume, minimum width={width("shm-volume")}] (tokens-volume) {Tokens}
node[volume, right=.25cm of tokens-volume] (shm-volume) {/dev/shm}
node[label, below of=tokens-volume] (volumes-label) {Volumes}
node[border, behind path,
fit=(data-volume)(shm-volume)(tokens-volume)(volumes-label)
] (volumes) {}; \&
\node[component] (spilo) {Spilo}; \&
\node[sidecar] (scalyr) {Scalyr}; \& \\ \&
\path
node[component] (patroni) {Patroni}
node[component, below=.25cm of patroni] (postgres) {PostgreSQL}
node[border, behind path,
fit=(postgres)(patroni)
] (spilo-components) {}; \&
\path
node[sidecar] (custom-sidecar1) {User defined}
node[label, right=.25cm of custom-sidecar1] (sidecars-middle) {}
node[sidecar, right=.25cm of sidecars-middle] (custom-sidecar2) {User defined}
node[label, below of=sidecars-middle] (sidecars-label) {Custom sidecars}
node[border, behind path,
fit=(custom-sidecar1)(custom-sidecar2)(sidecars-label)
] (sidecars) {};
\\ \& \\
};
% Draw the arrows between the nodes and label them.
\draw[to] (pod) to [bend left=25] (volumes);
\draw[to] (pod) to [bend left=25] (k8s-labels);
\draw[to] (pod) to [bend right=25] (affinity);
\draw[to] (pod) to [bend right=25] (scalyr);
\draw[to] (pod) to [bend right=25] (sidecars);
\draw[to] (pod) -- node[midway,above] {} node[midway,below] {} (spilo);
\draw[to] (spilo) -- node[midway,above] {} node[midway,below] {} (spilo-components);
\end{tikzpicture}
\end{center}
\end{document}