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dreampuf / katacoda.md
Created Mar 4, 2022
katacoda-mysql.md
View katacoda.md

docker pull mysql/mysql-server:latest docker run --name=mysql1 -d -p 3306:3306 mysql/mysql-server:latest while [ "docker inspect --format='{{.State.Health.Status}}' mysql1" != "healthy" ]; do echo "Starting server..."; sleep 5; done MYSQL_PASSWORD=$(docker logs mysql1 2>&1 | grep GENERATED | cut -d ' ' -f5) docker exec -e MYSQL_PASSWORD=$MYSQL_PASSWORD mysql1 mysql --connect-expired-password -uroot -p$MYSQL_PASSWORD -e "ALTER USER 'root'@'localhost' IDENTIFIED BY 'password';" cat </tmp/setup.sql CREATE USER 'admin'@'%' IDENTIFIED BY 'password'; GRANT ALL PRIVILEGES ON * . * TO 'admin'@'%'; FLUSH PRIVILEGES; EOF

@dreampuf
dreampuf / export_aws_cidr.sh
Created Feb 7, 2022
Export selected AWS region IP CIDR
View export_aws_cidr.sh
curl -L https://ip-ranges.amazonaws.com/ip-ranges.json | jq -r '.prefixes[] | select(.region |contains("cn-")) | .ip_prefix'
@dreampuf
dreampuf / elasticcache_d100
Last active Aug 28, 2021
Performance: AWS MemoryDB vs Elasticcache
View elasticcache_d100
$ ./memtier_benchmark -s ENDPOINT -d 100
[RUN #1] Preparing benchmark client...
[RUN #1] Launching threads now...
[RUN #1 100%, 54 secs] 0 threads: 2000000 ops, 38847 (avg: 36961) ops/sec, 1.84MB/sec (avg: 1.75MB/sec), 5.15 (avg: 5.41) msec latency
4 Threads
50 Connections per thread
10000 Requests per client
@dreampuf
dreampuf / launch.sh
Created Jul 8, 2020
How to create a vuejs3 project
View launch.sh
vue create PROJECT_NAME
# select features you need
cd PROJECT_NAME
vue add vue-next
rm src/shims-tsx.d.ts
sed -i '' 's/RouteConfig/RouteRecordRaw/g' src/router/index.ts # https://github.com/vuejs/vue-router-next/commit/fd49bbd085e9df7804994ea188f94384ac22e048
patch -p1 <<'EOF'
diff --git a/src/components/HelloWorld.vue b/src/components/HelloWorld.vue
index dc773ba..01a7286 100644
--- a/src/components/HelloWorld.vue
@dreampuf
dreampuf / install_openjdk8.sh
Last active Jul 2, 2020
Install JDK8 on Jessie in 2020
View install_openjdk8.sh
cat > /etc/apt/sources.list.d/openjdk.list <<"EOF"
deb [check-valid-until=no] http://archive.debian.org/debian jessie-backports main
EOF
apt-get update
apt install -t jessie-backports openjdk-8-jdk
update-alternatives --config java # select java1.8
@dreampuf
dreampuf / bash
Last active Mar 21, 2020
How to get the golang package version of the latest git repo commit
View bash
# Credit: https://stackoverflow.com/a/59440771/398634
TZ=UTC git --no-pager show \
--quiet \
--abbrev=12 \
--date='format-local:%Y%m%d%H%M%S' \
--format="%cd-%h"
@dreampuf
dreampuf / main.go
Last active Apr 27, 2022
Golang SSHAgent Usage Example
View main.go
package main
/*
Golang SSHAgent Usage
https://orebibou.com/2019/03/golang%E3%81%A7ssh-agent%E3%81%8B%E3%82%89%E9%8D%B5%E3%82%92%E5%8F%96%E5%BE%97%E3%81%97%E3%81%A6ssh%E6%8E%A5%E7%B6%9A%E3%81%99%E3%82%8B/
*/
import (
"fmt"
"golang.org/x/crypto/ssh"
@dreampuf
dreampuf / chicken_soup.ipynb
Last active Nov 19, 2019
Greasy Chiken Soup
View chicken_soup.ipynb
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@dreampuf
dreampuf / ssh_test.go
Created Aug 27, 2019
Golang SSH Interactively shell show case
View ssh_test.go
package main
import (
"bytes"
"context"
"golang.org/x/crypto/ssh"
"golang.org/x/crypto/ssh/agent"
"io/ioutil"
"net"
"os"
@dreampuf
dreampuf / calc.y
Last active Aug 22, 2019
hostlist generate by goyacc
View calc.y
%{
package main
import(
"fmt"
"bufio"
"os"
"strconv"
"unicode"
"unicode/utf8"
)