| #!/bin/bash | |
| [ -f /etc/dehydrated/hook.sh ] && . /etc/dehydrated/hook.sh | |
| SASLDBFILE="/var/spool/postfix/etc/sasldb2" | |
| SASLDBPASSWD="$(/usr/bin/which saslpasswd2)" | |
| SASLDBLISTUSER="$(/usr/bin/which sasldblistusers2)" | |
| LOGFILE="/var/log/sasl/createsasluser.log" | |
| RSYNC="$(/usr/bin/which rsync)" | |
| PWGEN="$(/usr/bin/which pwgen)" |
| #!/usr/bin/env bash | |
| cdr2mask () | |
| { | |
| # Number of args to shift, 255..255, first non-255 byte, zeroes | |
| set -- $(( 5 - ($1 / 8) )) 255 255 255 255 $(( (255 << (8 - ($1 % 8))) & 255 )) 0 0 0 | |
| [[ $1 -gt 1 ]] && shift ${1} || shift | |
| echo "${1-0}.${2-0}.${3-0}.${4-0}" | |
| } |
Test procedure https://dzone.com/articles/iops-benchmarking-disk-io-aws-vs-digitalocean
$ aptitude -y install -o quiet=2 ioping fio > /dev/null; time fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --output=/root/tempfile --bs=4k --iodepth=64 --size=4G --readwrite=randrw --rwmixread=75; rm -f test.*; cat tempfile; ioping -c 10 /root | tail -4
Jobs: 1 (f=1): [m(1)] [100.0% done] [1529KB/580KB/0KB /s] [382/145/0 iops] [eta 00m:00s]
real 14m20.420s
user 0m14.620s
| #!/bin/bash | |
| DOCKER_BASE="${DOCKER_BASE:-/srv/docker}" | |
| TRAEFIK_DIR="${TRAEFIK_DIR:-traefik}" | |
| mkdir -p ${DOCKER_BASE}/${TRAEFIK_DIR}/container.conf | |
| touch ${DOCKER_BASE}/${TRAEFIK_DIR}/container.conf/.env | |
| ln -s container.conf/.env ${DOCKER_BASE}/${TRAEFIK_DIR}/ | |
| cat > ${DOCKER_BASE}/${TRAEFIK_DIR}/container.conf/docker-compose.yml <<EOF |
| #!/bin/bash | |
| DOCKER_BASE=/srv/docker | |
| mkdir -p ${DOCKER_BASE}/watchtower/container.conf | |
| [ $(grep -c "healthcheck:" ${DOCKER_BASE}/watchtower/container.conf/production.yml) -eq 0 ] && sed -i '/labels:/i\ healthcheck:\n\ test: ["CMD", "/watchtower", "--health-check"]\n\ interval: 30s\n\ timeout: 10s\n\ retries: 3\n\ start_period: 40s' ${DOCKER_BASE}/watchtower/container.conf/docker-compose.yml && cd ${DOCKER_BASE}/watchtower/ && docker-compose -f docker-compose.yml -f container.conf/production.yml config && systemctl restart watchtower |
| #!/bin/sh | |
| # install needed curl package | |
| sudo apt install --no-install-recommends curl -y | |
| # install kubectl | |
| # https://github.com/kubernetes/minikube/issues/3437#issuecomment-449408316, maybe use https://storage.googleapis.com/minikube/releases/v0.30.0/docker-machine-driver-kvm2 | |
| curl -Lo /tmp/kubectl https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl && \ | |
| chmod +x /tmp/kubectl && \ | |
| sudo mv /tmp/kubectl /usr/local/bin/kubectl | |
| # kubectl tab completion | |
| sudo sh -c 'echo "source <(kubectl completion bash)" > /etc/bash_completion.d/kubectl' |
| #!/bin/bash | |
| # wget https://gist.githubusercontent.com/waja/d0995072b54b4ab5cb2b5e9ab9962543/raw/deploy_icinga2_agent_hw.sh -O /tmp/b && bash /tmp/b | |
| . /etc/os-release | |
| if [ "$(systemd-detect-virt)" == "none" ]; then | |
| modprobe ipmi_si && modprobe ipmi_devintf && \ | |
| apt-get install -y --no-install-recommends -t ${VERSION_CODENAME}-backports freeipmi-tools libipc-run-perl pciutils && \ | |
| echo "nagios ALL=(root) NOPASSWD: /usr/sbin/ipmi-sensors, /usr/sbin/ipmi-sel, /usr/sbin/ipmi-fru, /usr/sbin/ipmi-dcmi" > /etc/sudoers.d/check_ipmi_sensor && \ | |
| echo "nagios ALL=(root) NOPASSWD: /usr/sbin/smartctl" > /etc/sudoers.d/check_smart && \ |
| #!/bin/sh | |
| MYSQLADMIN_CFG="/etc/mysql/mariadb.conf.d/90-mysqladmin.cnf" | |
| # generate password | |
| PASS=$(perl -e 'print map{("a".."z","A".."Z",0..9)[int(rand(62))]}(1..16)'); | |
| # adjust /etc/mysql/debian.cnf (used as defaults file by system scripts) | |
| sed -i "s/^password =.*$/password = ${PASS}/" /etc/mysql/debian.cnf | |
| sed -i "s/^user =.*$/user = debian-sys-maint/" /etc/mysql/debian.cnf | |
| # create config file for mysqladmin itself (maybe not needed) | |
| umask 066 | |
| cat > ${MYSQLADMIN_CFG} <<EOF |
| wget -c "https://boot.netboot.xyz/ipxe/netboot.xyz.lkrn" -O /boot/netboot.xyz.lkrn && \ | |
| cat > /etc/grub.d/40_custom <<EOF | |
| #!/bin/sh | |
| exec tail -n +3 \$0 | |
| menuentry 'netboot.xyz' { | |
| set root='hd0,msdos1' | |
| linux16 /netboot.xyz.lkrn | |
| } | |
| EOF | |
| update-grub |