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[demo] add playground

This commit is contained in:
Tim Stack 2022-08-30 16:11:37 -07:00
parent cc598e3ae6
commit 84536d804c
8 changed files with 263 additions and 25 deletions
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15
demo/Dockerfile
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@ -14,25 +14,26 @@ ADD https://github.com/tstack/lnav/releases/download/v0.11.0-beta2/lnav-0.11.0-m
RUN unzip lnav-0.11.0-musl-64bit.zip
COPY docs/tutorials tutorials
RUN gunzip /tutorials/playground/logs/*.gz
RUN useradd -rm -d /home/logs -s /bin/bash logs
RUN echo 'logs:logs' | chpasswd
RUN passwd -d logs
RUN useradd -rm -d /home/playground -s /bin/bash playground
RUN echo 'playground:playground' | chpasswd
RUN passwd -d playground
RUN useradd -rm -d /home/tutorial1 -s /bin/bash tutorial1
RUN echo 'tutorial1:tutorial1' | chpasswd
RUN passwd -d tutorial1
RUN useradd -rm -d /home/debug -s /bin/bash debug
RUN echo 'debug:debug' | chpasswd
USER playground
RUN /lnav-0.11.0/lnav -nN -c ":config /ui/theme monocai"
USER tutorial1
RUN /lnav-0.11.0/lnav -nN -c ":config /ui/theme monocai"
USER root
RUN echo 'Match User logs' >> /etc/ssh/sshd_config
RUN echo 'ForceCommand env LNAVSECURE=1 TERM=xterm-256color /lnav-0.11.0/lnav -d /tmp/lnav.err /demo' >> /etc/ssh/sshd_config
RUN echo 'Match User playground' >> /etc/ssh/sshd_config
RUN echo 'ForceCommand env PATH=/lnav-0.11.0:$PATH /tutorials/playground/run.sh' >> /etc/ssh/sshd_config
RUN echo 'PermitEmptyPasswords yes' >> /etc/ssh/sshd_config
RUN echo 'Match User tutorial1' >> /etc/ssh/sshd_config
RUN echo 'ForceCommand env PATH=/lnav-0.11.0:$PATH /tutorials/tutorial1/run.sh' >> /etc/ssh/sshd_config

9
docs/tutorials/playground/index.md Normal file
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@ -0,0 +1,9 @@
# Playground
Welcome to the **lnav** playground!
There are some sample files loaded into the log and text views.
Press `q` to switch back to the log view and start exploring.
You can also press `f` in this view to switch to the other
text files that are loaded, like a markdown sample.

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docs/tutorials/playground/logs/access_log.gz Normal file
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docs/tutorials/playground/logs/messages.gz Normal file
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15
docs/tutorials/playground/run.sh Executable file
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@ -0,0 +1,15 @@
#!/bin/bash
export LNAVSECURE=1
export TERM=xterm-256color
timeout --foreground --kill-after=30s 10m lnav \
/tutorials/playground/logs \
/tutorials/playground/text \
/tutorials/playground/index.md#playground
if [ $? = 124 ]; then
echo "error: reached connection time limit, reconnect if you're not a bot."
else
echo "Thanks for trying out lnav! Have a nice day!"
fi

157
docs/tutorials/playground/text/markdown-sample.md Normal file
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@ -0,0 +1,157 @@
An h1 header
============
Paragraphs are separated by a blank line.
2nd paragraph. *Italic*, **bold**, and `monospace`. Itemized lists
look like:
* this one
* that one
* the other one
Note that --- not considering the asterisk --- the actual text
content starts at 4-columns in.
> Block quotes are
> written like so.
>
> They can span multiple paragraphs,
> if you like.
Use 3 dashes for an em-dash. Use 2 dashes for ranges (ex., "it's all
in chapters 12--14"). Three dots ... will be converted to an ellipsis.
Unicode is supported. ☺
An h2 header
------------
Here's a numbered list:
1. first item
2. second item
3. third item
Note again how the actual text starts at 4 columns in (4 characters
from the left side). Here's a code sample:
# Let me re-iterate ...
for i in 1 .. 10 { do-something(i) }
As you probably guessed, indented 4 spaces. By the way, instead of
indenting the block, you can use delimited blocks, if you like:
~~~
define foobar() {
print "Welcome to flavor country!";
}
~~~
(which makes copying & pasting easier). You can optionally mark the
delimited block for Pandoc to syntax highlight it:
~~~python
import time
# Quick, count to ten!
for i in range(10):
# (but not *too* quick)
time.sleep(0.5)
print i
~~~
### An h3 header ###
Now a nested list:
1. First, get these ingredients:
* carrots
* celery
* lentils
2. Boil some water.
3. Dump everything in the pot and follow
this algorithm:
find wooden spoon
uncover pot
stir
cover pot
balance wooden spoon precariously on pot handle
wait 10 minutes
goto first step (or shut off burner when done)
Do not bump wooden spoon or it will fall.
Notice again how text always lines up on 4-space indents (including
that last line which continues item 3 above).
Here's a link to [a website](http://foo.bar), to a [local
doc](local-doc.html), and to a [section heading in the current
doc](#an-h2-header). Here's a footnote [^1].
[^1]: Footnote text goes here.
Tables can look like this:
size material color
---- ------------ ------------
9 leather brown
10 hemp canvas natural
11 glass transparent
Table: Shoes, their sizes, and what they're made of
(The above is the caption for the table.) Pandoc also supports
multi-line tables:
-------- -----------------------
keyword text
-------- -----------------------
red Sunsets, apples, and
other red or reddish
things.
green Leaves, grass, frogs
and other things it's
not easy being.
-------- -----------------------
A horizontal rule follows.
***
Here's a definition list:
apples
: Good for making applesauce.
oranges
: Citrus!
tomatoes
: There's no "e" in tomatoe.
Again, text is indented 4 spaces. (Put a blank line between each
term/definition pair to spread things out more.)
Here's a "line block":
| Line one
| Line too
| Line tree
and images can be specified like so:
![example image](example-image.jpg "An exemplary image")
Inline math equations go in like so: $\omega = d\phi / dt$. Display
math should get its own line and be put in in double-dollarsigns:
$$I = \int \rho R^{2} dV$$
And note that you can backslash-escape any punctuation characters
which you wish to be displayed literally, ex.: \`foo\`, \*bar\*, etc.

3
docs/tutorials/tutorial1/index.md
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@ -135,6 +135,9 @@ That's all for now, thanks for your time! Visit the
download or install **lnav** for your system. The full
documentation is available at https://docs.lnav.org
Press `q` to switch to the log view and then press `q` again to
exit **lnav**.
## Colophon
The source for this tutorial is available here:

89
release/loggen.py
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@ -12,15 +12,25 @@ SYSLOG_DATE_FMT = "%b %d %H:%M:%S"
ACCESS_LOG_DATE_FMT = "%d/%b/%Y:%H:%M:%S"
GENERIC_DATE_FMT = "%Y-%m-%dT%H:%M:%S.%%s"
TEST_ADDRESSES = [
"192.0.2.55",
#"192.0.2.123",
"192.0.2.33",
#"192.0.2.2",
]
TEST_ADDRESSES = (
["192.0.2.55"] * 20 +
["192.0.2.44"] * 20 +
["192.0.2.3"] * 40 +
["192.0.2.100"] * 10 +
["192.0.2.122"] * 30 +
["192.0.2.42"] * 100
)
TEST_USERNAMES = [
"bob@example.com",
"bob@example.com",
"bob@example.com",
"combatcarl@example.com",
"combatcarl@example.com",
"combatcarl@example.com",
"combatcarl@example.com",
"combatcarl@example.com",
"combatcarl@example.com",
"-",
"-",
"-",
@ -39,6 +49,8 @@ TEST_METHODS = [
"PUT",
]
PATH_COMPS = "Lorem ipsum dolor sit amet consectetur adipiscing elit sed do eiusmod tempor incididunt ut labore et dolore magna aliqua".split()
TEST_URLS = [
"/index.html",
"/index.html",
@ -50,6 +62,12 @@ TEST_URLS = [
"/obj/1236?search=demo&start=1",
]
for index in range(0, 50):
path_list = []
for count in range(random.randint(2, 8)):
path_list.append(random.choice(PATH_COMPS))
TEST_URLS.append("/".join(path_list))
TEST_VERSIONS = [
"HTTP/1.0",
"HTTP/1.0",
@ -68,6 +86,12 @@ TEST_STATUS = [
200,
200,
404,
404,
404,
404,
403,
403,
403,
500
]
@ -91,24 +115,44 @@ TEST_AGENTS = [
"Apache-HttpClient/4.2.3 (java 1.5)",
"Apache-HttpClient/4.2.3 (java 1.5)",
"Apache-HttpClient/4.2.3 (java 1.5)",
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
"Roku4640X/DVP-7.70 (297.70E04154A)",
"Roku4640X/DVP-7.70 (297.70E04154A)",
"Roku4640X/DVP-7.70 (297.70E04154A)",
]
START_TIME = datetime.datetime.fromtimestamp(1641898727)
ACCESS_LOG_CURR_TIME = START_TIME
SYSLOG_LOG_CURR_TIME = START_TIME
def access_log_msgs():
global ACCESS_LOG_CURR_TIME
while True:
now = datetime.datetime.now()
ts = now - datetime.timedelta(seconds=1)
ACCESS_LOG_CURR_TIME += datetime.timedelta(seconds=random.randrange(1, 3))
yield '%s - %s [%s +0000] "%s %s %s" %s %s "%s" "%s"\n' % (
random.choice(TEST_ADDRESSES),
random.choice(TEST_USERNAMES),
ts.strftime(ACCESS_LOG_DATE_FMT),
ACCESS_LOG_CURR_TIME.strftime(ACCESS_LOG_DATE_FMT),
random.choice(TEST_METHODS),
random.choice(TEST_URLS),
random.choice(TEST_VERSIONS),
random.choice(TEST_STATUS),
random.randint(16, 1024 * 1024),
int(random.lognormvariate(1, 1) * 1000),
random.choice(TEST_REFERRERS),
random.choice(TEST_AGENTS)
)
)
TEST_PROCS = [
"server[123]",
@ -133,13 +177,17 @@ TEST_MSGS = [
"Received packet from %s" % random.choice(TEST_ADDRESSES),
]
def syslog_msgs():
global SYSLOG_LOG_CURR_TIME
while True:
SYSLOG_LOG_CURR_TIME += datetime.timedelta(seconds=random.randrange(1, 3))
yield '%s frontend3 %s: %s\n' % (
datetime.datetime.now().strftime(SYSLOG_DATE_FMT),
SYSLOG_LOG_CURR_TIME.strftime(SYSLOG_DATE_FMT),
random.choice(TEST_PROCS),
random.choice(TEST_MSGS),
)
)
try:
shutil.rmtree("/tmp/demo")
@ -152,21 +200,26 @@ FILES = [
("/tmp/demo/messages", syslog_msgs()),
]
while True:
COUNTER = 0
while COUNTER < 5000:
loop_inc = datetime.timedelta(seconds=random.weibullvariate(1, 1.5) * 500)
ACCESS_LOG_CURR_TIME += loop_inc
SYSLOG_LOG_CURR_TIME += loop_inc
for fname, gen in FILES:
for i in range(random.randrange(0, 4)):
for i in range(random.randrange(4, 8)):
COUNTER += 1
with open(fname, "a+") as fp:
if random.uniform(0.0, 1.0) < 0.01:
line = next(gen)
prefix = line[:50]
suffix = line[50:]
fp.write(prefix)
time.sleep(random.uniform(0.5, 0.6))
# time.sleep(random.uniform(0.5, 0.6))
fp.write(suffix)
else:
fp.write(next(gen))
# if random.uniform(0.0, 1.0) < 0.010:
# fp.truncate(0)
time.sleep(random.uniform(0.01, 0.02))
#if random.uniform(0.0, 1.0) < 0.001:
# time.sleep(random.uniform(0.01, 0.02))
# if random.uniform(0.0, 1.0) < 0.001:
# os.remove(fname)