From 9c7fdbb5f6ba0257f3761303dd8d079211113f2d Mon Sep 17 00:00:00 2001 From: Jann Idar Hillestad Date: Fri, 22 Nov 2024 00:28:10 +0100 Subject: [PATCH] Blog post complete --- content/blog/Dockerizing-Terraform.mdx | 93 +++++++++++++++++++++++++ public/terraform3001.png | Bin 0 -> 11770 bytes 2 files changed, 93 insertions(+) create mode 100644 content/blog/Dockerizing-Terraform.mdx create mode 100644 public/terraform3001.png diff --git a/content/blog/Dockerizing-Terraform.mdx b/content/blog/Dockerizing-Terraform.mdx new file mode 100644 index 0000000..2be59d5 --- /dev/null +++ b/content/blog/Dockerizing-Terraform.mdx @@ -0,0 +1,93 @@ +--- +title: Dockerizing Terraform +description: Terraform is an amazing IaC tool. You can use Docker to run Terraform in a containerized environment. I'll share what I leared about Dockerizing Terraform. +date: 2024-11-21 +published: true +tags: ["docker", "azure", "terraform", "iac"] +--- + +
+
+ Terraform3001 +
+
+ Docker1001 +
+
+ +# Why run Terraform in a Container? + +I like to keep my development environment as clean as possible. Containers are +a great way to do that. You can run Terraform in a containerized environment to +keep your host machine clean. You can also use containers to run Terraform in a +CI/CD pipeline. + +# Prerequisites + +- Docker +- A working directory with Terraform files +- An environment which supports Terraform (e.g. Azure, AWS, GCP) +- ARM_ACCESS_KEY environment variable (for Azure) + +# Docker Image + +We will be using the official HashiCorp Terraform Docker image. You can find +the image on Docker Hub at [https://hub.docker.com/r/hashicorp/terraform](https://hub.docker.com/r/hashicorp/terraform). + +# Running Terraform in a Container + +You can run Terraform in a container using the following commands. The commands mount the current working directory to the container using `-v` and `-w` parameters, and set the `ARM_ACCESS_KEY` environment variable using the `-e` parameter. After running the commands, the containers are removed using the `-rm` parameter. + +## terraform init + +```bash +docker run -i -t --rm -v "$(pwd):/workspace" -w /workspace -e ARM_ACCESS_KEY=$ARM_ACCESS_KEY hashicorp/terraform:latest init +``` + +## terraform plan -out=main.tfplan + +```bash +docker run -i -t --rm -v "$(pwd):/workspace" -w /workspace -e ARM_ACCESS_KEY=$ARM_ACCESS_KEY hashicorp/terraform:latest plan -out=main.tfplan +``` + +## terraform apply main.tfplan + +```bash +docker run -i -t --rm -v "$(pwd):/workspace" -w /workspace -e ARM_ACCESS_KEY=$ARM_ACCESS_KEY hashicorp/terraform:latest apply main.tfplan +``` + +## terraform destroy + +```bash +docker run -i -t --rm -v "$(pwd):/workspace" -w /workspace -e ARM_ACCESS_KEY=$ARM_ACCESS_KEY hashicorp/terraform:latest destroy +``` + +# Using Aliases + +As you probably noticed, the commands to run Terraform in a container are quite +long and cumbersome. I created aliases in my `.zshrc` file to make it easier to +run Terraform in a container. Here are the aliases I use: + +```bash +# Dockerized Terraform +alias dtfinit="docker run -i -t --rm -v "$(pwd):/workspace" -w /workspace -e ARM_ACCESS_KEY=$ARM_ACCESS_KEY hashicorp/terraform:latest init" +alias dtfinitrc="docker run -i -t --rm -v "$(pwd):/workspace" -w /workspace -e ARM_ACCESS_KEY=$ARM_ACCESS_KEY hashicorp/terraform:latest init -reconfigure" +alias dtfplan="docker run -i -t --rm -v "$(pwd):/workspace" -w /workspace -e ARM_ACCESS_KEY=$ARM_ACCESS_KEY hashicorp/terraform:latest plan -out main.tfplan" +alias dtfapply="docker run -i -t --rm -v "$(pwd):/workspace" -w /workspace -e ARM_ACCESS_KEY=$ARM_ACCESS_KEY hashicorp/terraform:latest apply main.tfplan" +alias dtfdestroy="docker run -i -t --rm -v "$(pwd):/workspace" -w /workspace -e ARM_ACCESS_KEY=$ARM_ACCESS_KEY hashicorp/terraform:latest destroy" +alias dtfrefresh="docker run -i -t --rm -v "$(pwd):/workspace" -w /workspace -e ARM_ACCESS_KEY=$ARM_ACCESS_KEY hashicorp/terraform:latest refresh" +``` + +# Conclusion + +Running Terraform in a container is a great way to keep your development +environment clean. It is a good thing that Hashicorp provides an official +Terraform Docker image. I try to use containers as much as possible in my +workflow to learn more about containers and to get ready to move on to +CI/CD pipelines and kubernetes soon. I hope you found this article helpful. +Let me know if you have any questions or suggestions. diff --git a/public/terraform3001.png b/public/terraform3001.png new file mode 100644 index 0000000000000000000000000000000000000000..e604c32a51543ff585ff38ab5c581c5ca50d8322 GIT binary patch literal 11770 zcmc(FcT`hZyLSK)MFk5Mq&h^(h@gT5L7JmL=z^h0Rk|8LAwuZlD9#8(0}^`ZNTex9 z?~E|i2%$(xz=42(5Cj4S2;6RC@4~FrXC(ZUHkA>>yDAHewmR*PztGF76#KC-Xxv^Kj*k%um*vhYnK@e z23-dYIJPh7<^Mv1|MdL-sQ4e!|NlDwSi#l_&hK|Z{HVqc;+%Z^YcY;jVPo{T^G`yC z4HlJJokIMAoRoo!o|K~DtRju-+7U53{{1|#J=q^i5lFd}@B!ELrrDIwkb8%e3>L|o z3;rb<)igz6n0VZkVOmzMhMJ2}c4AS=T;cZAi z9!r47bTA0n3l{3Yiyk&wbj{V66XJu~p;eKaa?Bh#1{Zjhuc}*I-TSA>PBYy_j}Sk# zx77lWWZc8cD!J%eF;leoHNAr5jjC0+XbbeMCgymd9+u%7`1Xt zypzs;nFg)lA*ErO50Dy+@-I?@4v^ISwC$;WcMqUQ{K5eQC_ziKhMR_{oD&8DYYvxE zWaTfG0_nlL+^XF>tzY;8!T1kwLk~+Mffn*W3rNTXNnoV-AL2ZfnKRsZjvm%E3;9Q@ zIYnlUBQpmY{`l8S;D-BHv2Ar9E4J%L?*B0=oS_#$QES=}Nwt*-%md8;nJ4dudCGtk zxPRJ<>9MEle`p!Ck_`Z;bA|y= zxwg%zh1dTf**zdxP4AArVZb_%wr%-8bAowu$bOEG7r|P)j<>^iPqX^}cvj@`(05D4 z;6i2j_bgXM$Q=yvR@&ymnsVzm&>-^Etpl9X;;quHQQe`Q6*2ri@gG=L1kK8ds`UXR zeqWlvE;EPshR3JG82p9nPahxMmz4pJRwfxO+C|=k3SgA-q`&iqMPqFDIx#fOD;%fdHRge0(5IHSl(% zSZ8pM9h(I#F~dkXJ+?d9>!Yc(nx2`?&oPa{9dVqqx20M&fND7RehpMeoBpmIEqrvj z6aT(jpbx?mSXWe#H}-^XKvvZ973n7*&O7qvWkkXuSG-&^J9a`B5iOi$Wq;iAoI-ZJ zN=CT1>X5XHyaQ7MAC#IH%!Q;E<3@(7!t;4NkUsij;*ORBS*6ddQApShJUG$H2 zhTD@_L#5Vr_4K|3`fvil3Olv&8hXkixf=8oO_h8JwVzw|EnI#lcMTC;bi34s# zL9@`p(&!DVp~RH~Ekofw*AwW(UroR4QOJgk4j~s;fgQ~f1aGwK=Ua$V^%eAI@M=C0 zpc6y&*-G}TfNl=@>Xv|>);Vs=Yamji*`Jy9UU^R9)DbFsR=HKf-KB}6LBJskonvKp z=N>lq6>pXfFvsZ017FlHX2Xn&qbG=+COc|5-}2@XSN_6L*T|v7 zI}*H?|A>&$EUVE6I+g$RsH6@p1%;jrJs~JGi!-=~MY|Rvg4-SjjiRC1?h89RaJ7txvVzg2$) z0hcSGhTLu+CR2Z=I2m}WZzVe`@{2Q=adOO5ePh@eZ%nhX(gF*K*fS!|{E4vY>$^3i zU%U|=WmrGb5!V<&S;|iYR};JnsV;QL{G(O^Jxg1kFO%J)y=Z;9z8v_5II#*Z11*YQx=b#e=gWwKggnhTb01_-oHiE# zGdI;FT2hLq2teugJJ9K`nH)pUdgzFifdH3lTcbYx;_8?kq-KVy=$VDAwYqJiZa4)j zJYojG34pVjnl-Y_oH}i`3cv!{)bU6Fer0DP#K3?!Yq7O)M%5*(Nz+VbiS3WI() zkRyW?Pi|xBwi#!o4cWOn@HESTN#8;AtWbaR8RPc|2)b1cnSgZgYma=S+DCg01$?T;py#I0{b!tu}>sP!hCq1`=KTr&aNe z0fAY70re=f8^Gw`#$P!(W{pDqTUe8ptj*=Jf9{NXY-j`9Nb9DS)CIyC@zb`wI4}?V zYu^(9Xgoi}0TCI#*W+NJ2bb*F>97gVS>xmZi2KZW`FjJ77?Zu(yCXlat!XS_D3YE9 z^Q#94y>NvClayHoC8?9Jk(LOVg&q!OvovI)?F;xHS~)NvZ4oKT@qTdsFe>46Z>V7G zb550JwFYcYvzUMVMR;Vw zi-Vx}y_bLVL=iw%9kvYBJ8|MWc=s|bGzY@gJ3CAH8hG|A> z4-oW3h18TxE4!JR>&_gt05YgYAndav+`_jXHbqSB$w4@?Da4)*p9V9kB#RBy+5GT9 z-m!@zOlCm^4aZt=&V0Vie`CgY74X-acE7i*oj_j&BgDN;p1=Vh^aD9PP9ZhQm|W(M z493y3zSokG!GK%QzksoXpmFMLRkta>)RGNNo`b0j5|2((Tf`ehOePm56ZrUYvlhM; zI787@x#p7EsEXdAcY@#ryTV~O1K4XiR{~gaELRC%4brtSs2u{lclUzKV4tzMd~pqc zg^!aoSb%XY5AhoMZ1<3^AMqL_qAta%C^>}E;RQl8euc9FKwVNDx<v z_aOb9_`=E7=b}OA&6<>U zf_{GFGx1JsPc{tw2?DQlKu9t+efk28iZ>`}bRv-GOV}-Z$gxkf60teMs(GbWPXIIb zl%W?1+uUgi`$BcjuD2&=QV;;A%A6>`M?+B$UrapEV&>=|gMX)I*|nkZqmbp^K$df`-Db-+ zChTc(kZ9;xu~Uu-Dm{+SZ1pNbMrI+EfEkVVY$rzBOfq0QxZamx4!jE|4Tcj_WK(OV z@0TEKe;rgxKeFx4yWTHcu({nypM5|woqDYiMEc<C%NErD6$2;(H$v8OcbTHELQIYWP%!eb zURnv!W%vDL!{KM5H#heJV;=L2%ii=kG-s&eK9rbJICz4Zoh#9&4Zx1Wu70~5S-Py7 zt3d@+W6k+MGd&0jOyQqE8d`XuwD`Ve+Mz2{MO|%l#uWpsl;bWzf`F3aW(mZjoj8~| zfE0*XO!(FT)gdo|ca`Jft@JQZ7J*QDh{5I#!|Q~Ew+fu;d z(OCE z{DG(ind#0w=}-*ByD-%dQ&sY0%YaGie}byRs7c!`0U(~kA>c$%(gH_+ES-ag0Isq7 zDHpJs+wgWlL0E-Iq+DDnLPU@kv`<9~A!)BxvO(dv-DqdYjd}t6fT4#$kx)Hn$N@H0 zjyZ!B4E6%HAL}kQoP+)WblbVWZ2u?vKnV2jZU6xrbZrm)Zy&y}{XTy6DaRNlccxN_ zS5pdLO#spe|Mf)V2NktZQUvG6i=YCP3(tYbp?IqY;Gj?`Um{}C0&1@sc%4+m#h-v^ zn!_M-BjsClGB}EYd*e9IxI?=?-qC*mbS5LP-2F>2DqKt8DrJyAIgGzy&2yiE|_ci$A6LHdPtPhAFg}nx78rYx! 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