vbezhenar.com

Using aws cli for S3 inside docker

read AWS_ACCESS_KEY_ID
read AWS_SECRET_ACCESS_KEY
export AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY
docker run --rm \
  -e 'AWS_ACCESS_KEY_ID' -e 'AWS_SECRET_ACCESS_KEY' \
  -v "$PWD:/aws" \
  'docker.io/amazon/aws-cli:latest' \
  --endpoint-url='https://archive.pscloud.io' \
  --region='kz-ala-1' \
  s3 cp './local-file' 's3://bucket/key/name'

gdb cheatsheet

target remote 127.0.0.1:4242
p/z $r0 # print, z: hex; t: two
x/z 0x40021008 # eXamine
display/z $r0
display/4i $pc - 1
display/z *((int*)$sp)@4
stepi # step instruction
info registers

Install homebrew package without homebrew

Example URLs:

https://formulae.brew.sh/formula/stlink
 https://formulae.brew.sh/api/formula/stlink.json
  .bottle.stable.arm64_ventura.url:
  https://ghcr.io/v2/homebrew/core/stlink/blobs/sha256:37bc6182a2709fbcd5046be4c1cb93936475f12d2ee42983e9f7802ed89bc97c
 https://formulae.brew.sh/api/formula/libusb.json
  .bottle.stable.arm64_ventura.url:
  https://ghcr.io/v2/homebrew/core/libusb/blobs/sha256:ea8a4a04b5cc81eff38d0c5cdfe2fbac519ca2c7652c64371074f4abaf766a0b

Keychain Access, Certificate Assistant, Create a Certificate, Code Signing

curl -L -H 'Authorization: Bearer QQ==' -o 'stlink-bottle.tar.gz' 'https://ghcr.io/v2/homebrew/core/stlink/blobs/sha256:37bc6182a2709fbcd5046be4c1cb93936475f12d2ee42983e9f7802ed89bc97c'
curl -L -H 'Authorization: Bearer QQ==' -o 'libusb-bottle.tar.gz' 'https://ghcr.io/v2/homebrew/core/libusb/blobs/sha256:ea8a4a04b5cc81eff38d0c5cdfe2fbac519ca2c7652c64371074f4abaf766a0b'
tar -x -f stlink-bottle.tar.gz
tar -x -f libusb-bottle.tar.gz
mkdir stlink-1.7.0
mv stlink/1.7.0/bin/* stlink-1.7.0/
mv libusb/1.0.26/lib/libusb-1.0.0.dylib stlink-1.7.0/
otool -L stlink-1.7.0/st-flash
install_name_tool -change '@@HOMEBREW_PREFIX@@/opt/libusb/lib/libusb-1.0.0.dylib' '/opt/stlink-1.7.0/libusb-1.0.0.dylib' stlink-1.7.0/st-flash
install_name_tool -change '@@HOMEBREW_PREFIX@@/opt/libusb/lib/libusb-1.0.0.dylib' '/opt/stlink-1.7.0/libusb-1.0.0.dylib' stlink-1.7.0/st-info
install_name_tool -change '@@HOMEBREW_PREFIX@@/opt/libusb/lib/libusb-1.0.0.dylib' '/opt/stlink-1.7.0/libusb-1.0.0.dylib' stlink-1.7.0/st-trace
install_name_tool -change '@@HOMEBREW_PREFIX@@/opt/libusb/lib/libusb-1.0.0.dylib' '/opt/stlink-1.7.0/libusb-1.0.0.dylib' stlink-1.7.0/st-util
codesign -s 'Vladimir Bezhenar' -f stlink-1.7.0/st-flash
codesign -s 'Vladimir Bezhenar' -f stlink-1.7.0/st-info
codesign -s 'Vladimir Bezhenar' -f stlink-1.7.0/st-trace
codesign -s 'Vladimir Bezhenar' -f stlink-1.7.0/st-util
sudo cp -r stlink-1.7.0 /opt/stlink-1.7.0

keytool cheatsheet

keytool -import -alias alias -keystore keystore.jks -file certificate.der

kubectl exec etcdctl

Invoking etcdctl using kubectl for kubeadm cluster

kubectl exec -n kube-system etcd-control-0 -- sh -c 'ETCDCTL_API=3 etcdctl --endpoints=https://127.0.0.1:2379 --cacert /etc/kubernetes/pki/etcd/ca.crt --cert /etc/kubernetes/pki/etcd/server.crt --key /etc/kubernetes/pki/etcd/server.key member list'

maven minimal pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0">
    <modelVersion>4.0.0</modelVersion>

    <groupId>java-21-test</groupId>
    <artifactId>java-21-test</artifactId>
    <version>0.0.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.release>21</maven.compiler.release>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven-clean-plugin.version>3.3.1</maven-clean-plugin.version>
        <maven-compiler-plugin.version>3.11.0</maven-compiler-plugin.version>
        <maven-enforcer-plugin.version>3.4.1</maven-enforcer-plugin.version>
        <maven-jar-plugin.version>3.3.0</maven-jar-plugin.version>
        <maven-resources-plugin.version>3.3.1</maven-resources-plugin.version>
        <maven-surefire-plugin.version>3.1.2</maven-surefire-plugin.version>
        <versions-maven-plugin.version>2.16.1</versions-maven-plugin.version>
    </properties>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-enforcer-plugin</artifactId>
                <executions>
                    <execution>
                        <id>enforce-maven</id>
                        <goals>
                            <goal>enforce</goal>
                        </goals>
                        <configuration>
                            <rules>
                                <requireMavenVersion>
                                    <version>3.9.5</version>
                                </requireMavenVersion>
                            </rules>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>

        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-clean-plugin</artifactId>
                    <version>${maven-clean-plugin.version}</version>
                </plugin>

                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>${maven-compiler-plugin.version}</version>
                </plugin>

                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-enforcer-plugin</artifactId>
                    <version>${maven-enforcer-plugin.version}</version>
                </plugin>

                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-jar-plugin</artifactId>
                    <version>${maven-jar-plugin.version}</version>
                </plugin>

                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-resources-plugin</artifactId>
                    <version>${maven-resources-plugin.version}</version>
                </plugin>

                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-surefire-plugin</artifactId>
                    <version>${maven-surefire-plugin.version}</version>
                </plugin>

                <plugin>
                    <groupId>org.codehaus.mojo</groupId>
                    <artifactId>versions-maven-plugin</artifactId>
                    <version>${versions-maven-plugin.version}</version>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
</project>

mvn versions:display-property-updates

openssl print utf8

openssl x509 -in cert.pem -nameopt utf8,sep_multiline -text

Oracle Linux Cloud default user

cloud-user
psql essentials

Invocation: psql -h host -p port -U user dbname

List tables: \dt [*tbl*]

Show DDL: \d tbl

Customize fat label with qemu virtual fat driver

  -blockdev driver=vvfat,node-name=cidata,read-only=on,dir="$cidata_dir",label='CIDATA' \
  -device virtio-blk-pci,drive=cidata \

Retrieve graphql schema

npm install gql-sdl
npx gql-sdl -H 'Cookie:auth=token' https://example.com/graphql > example.graphql