fedora-docs-l10n/fedora-coreos/master/pages/tutorial-services — Portuguese (Brazil) @ Fedora Weblate: Let's write a small script that uses https://icanhazip.com/[icanhazip.com] to create …

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	English	Portuguese (Brazil)	Actions
	Starting a script on first boot via a systemd service	Iniciando um script na primeira inicialização por meio de um serviço systemd
	Make sure that you have completed the steps described in the xref:tutorial-setup.adoc[initial setup page] before starting this tutorial.	Certifique-se de ter concluído as etapas descritas em xref:tutorial-setup.adoc[página de configuração inicial] antes de iniciar este tutorial.
	In this tutorial, we will run a script on the first boot via a systemd service. We will add the following to the Butane config from the previous scenario:	Neste tutorial, executaremos um script na primeira inicialização por meio de um serviço systemd. Adicionaremos o seguinte à configuração do Fedora CoreOS do cenário anterior:
	Add a script at `/usr/local/bin/public-ipv4.sh`.	Adicione um script em `/usr/local/bin/public-ipv4.sh`.
	Configure a systemd service to run the script on first boot.	Configure um serviço systemd para executar o script na primeira inicialização.
	Writing the script	Escrevendo o script
	Let's write a small script that uses https://icanhazip.com/[icanhazip.com] to create an issue file to display as a prelogin message on the console and store it in `public-ipv4.sh`.	Vamos escrever um script simples que utiliza https://icanhazip.com/[icanhazip.com] para atualizar o issuegen de ttps://github.com/coreos/console-login-helper-messages[console-login-helper-messages] para gerar o endereço público IPv4 do nó no console serial durante a inicialização:
	cat <<'EOF' > public-ipv4.sh #!/bin/bash echo "Detected Public IPv4: is $(curl https://ipv4.icanhazip.com)" > \ /etc/issue.d/50_public-ipv4.issue EOF	#!/bin/bash echo "Detected Public IPv4: is $(curl https://ipv4.icanhazip.com)" > \ /run/console-login-helper-messages/issue.d/50_public-ipv4.issue
	This could be useful in cloud environments where you might have different public and private addresses.	Isso pode ser útil em ambientes de nuvem onde você poderá encontrar diferentes endereços públicos e privados.
	We will store this script into `/usr/local/bin/public-ipv4.sh` when we provision the machine.	Nós vamos armazenar esse script em `/usr/local/bin/public-ipv4.sh` quando provisionarmos a máquina.
	Writing the systemd service	Escrevendo o serviço do systemd
	We need to call the script from the previous section by using a systemd unit. Let's write a systemd unit into the `issuegen-public-ipv4.service` file that does what we want, which is to execute on first boot and not again:	Nós precisamos chamar o script da seção anterior usando uma unidade o sytemd, Aqui está uma que funciona para o que queremos, que é executar somente na primeira inicialização e não novamente:
	cat <<'EOF' > issuegen-public-ipv4.service [Unit] Before=systemd-user-sessions.service Wants=network-online.target After=network-online.target ConditionPathExists=!/var/lib/issuegen-public-ipv4	[Unit] Before=console-login-helper-messages-issuegen.service After=network-online.target ConditionPathExists=!/var/lib/issuegen-public-ipv4
	[Service] Type=oneshot ExecStart=/usr/local/bin/public-ipv4.sh ExecStartPost=/usr/bin/touch /var/lib/issuegen-public-ipv4 RemainAfterExit=yes	[Service] Type=oneshot ExecStart=/usr/local/bin/public-ipv4.sh ExecStartPost=/usr/bin/touch /var/lib/issuegen-public-ipv4 RemainAfterExit=yes
	[Install] WantedBy=multi-user.target EOF
	Writing the Butane config and converting to Ignition	Escrevendo a configuração Fedora CoreOS e convertendo para Ignition
	We can now create a Butane config that will include the script and systemd unit file contents by picking up the local `public-ipv4.sh` and `issuegen-public-ipv4.service` files using local file references. The final Butane config, stored in `services.bu`, will be:	Nós podemos agora criar uma configuração FedoraCoreOS incluindo o script e a unidade do systemD diretamente no conteúdo inline dentro das seções systemd/units e storage/files. A configuração final Fedora CoreOS, armazenada em `fcct-services.yaml` será:
	variant: fcos version: {butane-latest-stable-spec} systemd: units: - name: serial-getty@ttyS0.service dropins: - name: autologin-core.conf contents: \| [Service] # Override Execstart in main unit ExecStart= # Add new Execstart with `-` prefix to ignore failure` ExecStart=-/usr/sbin/agetty --autologin core --noclear %I $TERM - name: issuegen-public-ipv4.service enabled: true contents_local: issuegen-public-ipv4.service storage: files: - path: /etc/hostname mode: 0644 contents: inline: \| tutorial - path: /etc/profile.d/systemd-pager.sh mode: 0644 contents: inline: \| # Tell systemd to not use a pager when printing information export SYSTEMD_PAGER=cat - path: /usr/local/bin/public-ipv4.sh mode: 0755 contents: local: public-ipv4.sh	[Install] WantedBy=console-login-helper-messages-issuegen.service storage: files: - path: /etc/hostname mode: 0644 contents: inline: \| tutorial - path: /etc/profile.d/systemd-pager.sh mode: 0644 contents: inline: \| # Diz ao sytemD para não usar um paginador quando estiver imprimindo informações export SYSTEMD_PAGER=cat - path: /etc/sysctl.d/20-silence-audit.conf mode: 0644 contents: inline: \| # Aumenta o nível de logging de DEBUG(7) para WARNING(4) # para esconder mensagens de auditoria do console interativo kernel.printk=4 - path: /usr/local/bin/public-ipv4.sh mode: 0755 contents: inline: \| #!/bin/bash echo "Detected Public IPv4: is $(curl https://ipv4.icanhazip.com)" > \ /run/console-login-helper-messages/issue.d/50_public-ipv4.issue
	Check the Butane https://coreos.github.io/butane/examples/[Examples] and https://coreos.github.io/butane/specs/[Configuration specifications] for more details about local file includes.
	With the files `public-ipv4.sh`, `issuegen-public-ipv4.service`, and `services.bu` in the current working directory we can now convert to Ignition:
	butane --pretty --strict --files-dir=./ services.bu --output services.ign	fcct --pretty --strict fcct-services.yaml --output services.ign
	Testing	Testando

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